I think Bill Gates once mocked the idea that anyone would need more than 640KB of memory.
Have I jumped through the looking glass? A majority of posts on this thread are adding to ignorance and repeating old urban myths.
I think a lot of financial experts believed that while housing prices may at some time peak, there was absolutely no way they would ever fall.
Do you think cars break even financially?
Hardly! Here in my state, taxes on cars & gas don’t even pay for a third of the cost of the roads – the rest is subsidized by the general fund of the state. And that’s just the basic cost of building & maintaining the roads themself, to say nothing about the many auxiliary services like the cops to patrol them, hospital emergency rooms to help auto accident victims, courts to deal with driving offenses, electricity to run traffic lights, etc.
Frankly, I don’t think there are any transportation systems that break even – they are all subsidized. And have been all through history, as far back as the Roman Empire using chain gangs to build the cobblestone roads that all led to Rome.
But IBM was NOT the foremost manufacturer of computers, in 1943. They sold mainly punch card equipment (and punch cards) – the digital computer was a threat to their cash cow business.
Rather like asking the head of a landline phone company how big a market they foresee for these new ‘cellular’ phones.

Air travel today is far cheaper and more accessible than it was in 1960, though, even though the first jet airliner (the Boeing 707) was introduced the year before. Back then, most people didn’t fly. Domestically, they most likely drove a car. (Passenger train travel was in serious decline by 1960.) However, air travel (especially overseas) was still primarily for the wealthy.
From here:
What changed air travel was the establishment of airlines like Southwest (founded in 1971). I flew four members of my family from Boston to Baltimore last Christmas for less than $50 per person each way, for example.
According to this site:
http://www.catchoursmile.com/myweb/Highlights.htm
in 1958, you could fly from Los Angeles to San Francisco on PSA Airlines for $11.81. Apparently a lot of Southwest’s business model was based on what PSA had already done.
But IBM was NOT the foremost manufacturer of computers, in 1943. They sold mainly punch card equipment (and punch cards) – the digital computer was a threat to their cash cow business.
Rather like asking the head of a landline phone company how big a market they foresee for these new ‘cellular’ phones.
Actually, in 1943 there weren’t any manufacturers of computers. But saying that computers was “a threat to their business” is absurd – they were the most likely to become computer manufacturers, and did so.
Even if they were only punch card manufacturers and didn’t go on to computers, computers used a LOT of punch cards until the mid-1970s. That’s not a threat to their business, it’s a BOON.

According to this site:
http://www.catchoursmile.com/myweb/Highlights.htm
in 1958, you could fly from Los Angeles to San Francisco on PSA Airlines for $11.81. Apparently a lot of Southwest’s business model was based on what PSA had already done.
This historical currency converter says that would be $88.94 in present US money. I’ve never flown on any small regional airlines in the US, does that amount sound the same? Does it include airport fees and the other bullshit stuff tacked on to the price of the ticket?
There’s the old standard – the student who
… arrived late for a graduate level statistics class and found two problems written on the board. Not knowing that they were examples of unsolved statistics problems, he mistook them for part of a homework assignment, jotted them down, and solved them.
Steves Wozniak and Jobs had their “personal computer” rejected by HP, then started Apple Computer. I’m entertained by the fact that college dropouts like Wozniak, Jobs and Bill Gates eventually found gainful employment. Per the OP, I think the mindset of people you’re looking for is expressed thusly:
When Steve Wozniak was in high school in the mid-1960s, he dreamed of owning a computer. His father told him that computers cost as much as the down payment on a house. “Then I’ll live in an apartment,” Wozniak said.

This historical currency converter says that would be $88.94 in present US money. I’ve never flown on any small regional airlines in the US, does that amount sound the same? Does it include airport fees and the other bullshit stuff tacked on to the price of the ticket?
That would be about the same as the current Southwest fare. However, they do have advance-purchase, non-refundable net fares now from time to time that are considerably lower. Consider, though, that service is much poorer now and conditions are far more cramped and uncomfortable.

Margret Thatcher famously said that anyone who believed the ANC would ever rule South Africa was “living in cloud-cuckoo land”.
IIRC she also once said that she didn’t believe there would be a woman Prime Minister in her lifetime.

…Consider, though, that service is much poorer now and conditions are far more cramped and uncomfortable.
And not nearly as many men are wearing fedoras. That sucks right there.
Didn’t someone once prove mathmatecally that flight was impossible ?
Only for someone to point out that insects and birds did it everyday.
As a mega Science Fiction buff in my teens I KNOW that the future started in 2000 A.D. and the proof is that we landed on the moon thirty years before, have satellites and a manned space station and have sent robot explorers to Mars and the outer Solar System.
We also have nuclear power, the Channel tunnel and mobile phones.
And not forgetting of course the world wide sharing of the sum total of all Human knowledge, the Internet…which most probably has expanded the total of male masturbation globally beyond all historical precedents, spread far and wide untenable conspiracy theories and allowed a lot of people who can’t be bothered to read or study: to become instant experts on subjects that they know absoloutley nothing about by Googling dodgey Web sites that back up their opinions.
Also I don’t think that many people foresaw the demise of the Soviet Union, the arise of a de facto European super state and the huge expansion of international extreme Islamism .
The single most impossible and unpredicatble thing that’s occurred in my lifetime is that the West was able to achieve total victory in the Cold War without firing a single shot on the USSR. Yes, some predicted the Soviet Union would sooner or later collapse. But no one thought the USSR would simply wilt.

…which most probably has expanded the total of male masturbation globally beyond all historical precedents
Not really. Male masturbation is largely controlled by human hormones, which trigger sexual feeling at an appropriate age, and also decline with age. This occurs pretty much the same across all cultures and throughout history, as far as we can tell.
The internet has just made inspirational material more readily available. (Though even in the 1950’s in the rural Midwest, ‘dirty magazines’ were easily available.) The total amount of male masturbation in not likely to have changed significantly.

Our world-wide communication grid almost fits; wireless communication was known but I don’t know if they could imagine the extent to which it’s been taken.
Nikola Tesla was infamous for promising far more than he could deliver, but he did have a good imagination. The following is from a 1912 article, Wireless Power:
The general term “World Telegraphy” has been suggested for Tesla’s scheme of intelligence transmission, although “World Aërophony” would be as applicable, since his system will make it as practicable to talk as to telegraph through or around the globe, and as easily to a person using his aërophone at the antipodes as one in an office in the next block. Nor will it require a great, unwieldy contrivance for sending either aërograph or aërophone messages; such, for instance, as required in the present wireless system. Instead, Tesla assures us, for this purpose a small, cheap and extremely simple device, so compact and portable that it may be set up or held in one’s hands anywhere on land or sea while it sends through intermediary transmitting plants messages to any part of the terrestrial universe, or receives such special messages as may be intended for it, or records the news of the world as constantly dispatched from the various news distributing stations.
Professor Tesla is confident that his system of intelligence transmission constitutes, in its principles of operation, means employed, and capabilities of application, a radical and fruitful departure from what he has done before. “I have no doubt,” he adds, “that it will prove very efficient in enlightening the masses, particularly in still uncivilized countries and less accessible regions, and that it will add materially to general safety, comfort, and convenience, and maintenance of peaceful relations. It involves the employment of a number of plants, all of which are capable of transmitting individualized signals to the uttermost confines of the earth. Each of them will be preferably located near some important center of civilization, and the news it receives through any channels will be flashed to all points of the globe. The entire earth will be converted into a huge brain, as it were, capable of response to anyone of its parts. Since a single plant of one hundred horsepower can operate hundreds of millions of instruments, the system will have a virtually infinite working capacity, and it must needs immensely facilitate and cheapen the transmission of intelligence.”
With universal aërophony available by the use of a convenient pocket instrument, the balloonist dropping into the far interior of uninhabited Canada need never be featured in the news as “lost.” The explorer striving to reach the earth’s poles, or venturing into the wilds of the world’s untraveled regions, will be able to keep in hourly touch with his friends, to report his progress to the world, or to send out a call for relief or rescue over bleak fields of ice, the desert wastes, or jungle fastnesses. Also, the man hunting in the big woods, or on a solitary journey on land or sea, can spend an otherwise lonely evening talking with the folk at home. There will never be any reports of “line’s busy” by Central on this aëroline. Nor will there be any eavesdropping on “party lines” or delays through an inattentive Central; for, lo! there will be no Central. Each instrument and its operator will constitute an aërophone central in themselves; all calls being direct from the instrument calling to the one called. And any operator with his individual pocket instrument may call any other instrument anywhere on the face of the earth, simply by adjusting the selective device on his instrument to correspond with that of the one desired.
“At my plant on Long Island,” says this magician, "when all the apparatus is perfected for commercial use, I shall be able from my aërophone there to call up any 'phone in the universe, and, although apparently inconceivable, it is nevertheless true that my small voice through the delicate apparatus I am completing will be able to set the utmost confines of the whole world trembling with the vibrations of its force. As to the wireless telegraph of today and the incipient wireless telephone, they are but a puny step in the field of wireless transmission.
David Sarnoff was head of RCA, then in a futile competition against IBM in the mainframe computer field. Here’s what he had to say in 1964:
The computer will become the hub of a vast network of remote data stations and information banks feeding into the machine at a transmission rate of a billion or more bits of information a second. Laser channels will vastly increase both data capacity and the speeds with which it will be transmitted. Eventually, a global communications network handling voice, data and facsimile will instantly link man to machine–or machine to machine–by land, air, underwater, and space circuits. [The computer] will affect man’s ways of thinking, his means of education, his relationship to his physical and social environment, and it will alter his ways of living… [Before the end of this century, these forces] will coalesce into what unquestionably will become the greatest adventure of the human mind.
But I’m partial to Carl Dreher’s 1977 response:
On the subject of communications, however, Sarnoff was an authority: ‘Through communication satellites, laser beams, and ultraminiturization, it will be possible by the end of the century to communicate with anyone, anywhere, at any time, by voice, sight, or written message.’ Some of this is already in prospect, and some of the ideas are attractive, although they rest on the supposition that by the end of the century the dream of ‘one world’ will come true. But about the degree of interaction among people that Sarnoff seems to regard as a valid objective I have my doubts, and I am sure I have plenty of company. To be able to communicate with anyone, anywhere, at any time is the opposite of being a recluse, and it seems to me just as undesirable. Shouldn’t we spend more times with ourselves, in meditation or reading, both of which afford a certain privacy of thought, a communion with oneself, which surely has value as great as the give-and-take of two-way communication, whether for business or pleasure. I have an idea that in this extrapolation Sarnoff was influenced by his own temperament and managerial role, with its necessary concentration on decision making, which in turn required more communication than would be healthy for most people, or for society as a whole.

According to this site:
http://www.catchoursmile.com/myweb/Highlights.htm
in 1958, you could fly from Los Angeles to San Francisco on PSA Airlines for $11.81. Apparently a lot of Southwest’s business model was based on what PSA had already done.

This historical currency converter says that would be $88.94 in present US money. I’ve never flown on any small regional airlines in the US, does that amount sound the same?

That would be about the same as the current Southwest fare. However, they do have advance-purchase, non-refundable net fares now from time to time that are considerably lower. Consider, though, that service is much poorer now and conditions are far more cramped and uncomfortable.
I don’t think there is much comparison between the DC-3 and DC-4 aircraft flown by PSA in the 1950s and the Boeing 737 flown by Southwest. If you think that flying in a DC-4 in 1958 was more cramped and uncomfortable than flying in a modern 737, then you have never seen a DC-4. While they were revolutionary in their time, the DC-4 was a loud, slow aircraft. The noise and vibration meant that you had to shout to be heard by the person sitting next to you.
The DC-3 was notable in that, for the first time, you could make a transcontinental flight across the U.S. in only 15-18 hours with three refueling stops. A DC-4 could make the same trip in only 12 hours, while a 737 can make the flight in about 6 hours. Again, no comparison.
Not really. Male masturbation is largely controlled by human hormones, which trigger sexual feeling at an appropriate age, and also decline with age. This occurs pretty much the same across all cultures and throughout history, as far as we can tell.
The internet has just made inspirational material more readily available. (Though even in the 1950’s in the rural Midwest, ‘dirty magazines’ were easily available.) The total amount of male masturbation in not likely to have changed significantly.
So er, alll, my …research, was for nothing.