It's 2100; Is mankind 'Happy"?

We have mastered all aspects of genetic engineering: cancer and infectious diseases are a thing of the past. Upon birth, all humans are scanned for medical conditions and all defects corrected. mental illnesses no longer exist.
Due to direct conversion of sunlight to electricity, no more fossil fuel use. Electric cars have 600 mile ranges.
Supersonic airliners are a reality-you can fly from NYC to Tokyo in 2 hours.
-agriculture is five times as productive as today-you can buy prime beef for $0.25/lb.
All humans are in constant contact with a super internet-any question you have or need is instantly answered.
Religion has evolved into a philosphy of mutual respect and love-no more religious conflicts.
Would we all be happy?

2100? It’s only 0902 here.

Been tackled a hundred times in fiction and philosophy. Start with Heinlein’s 1941 “Beyond This Horizon,” which begins with the postulate that all civic and social problems have been solved, and that everyone is, or should be, “happy.”

Some are not, surprise, surprise, and while the tale is not one of RAH’s best, he does poke some pretty good holes in the kind of notion you’re presenting.

Man is born to trouble as surely as sparks fly upward.

We won’t be happy until we invent better sparks.

Nope. The hard plastic shells stores sell things in will still be impossible to open. Not to mention those leafblowers.

Super internet built into our heads. Instant answers. Ask yourself, answer yourself or even no need to ask…

…maybe in the year 2525…

Sure, if you think humanity will still be extant at that point.

Assuming all of this is achievable, I imagine we would be happier than we are now, but not happy. After all, consider that our standard of living today is unimaginable to even the wealthiest of a century ago, at least in developed countries. In general, even those at the poverty line have certain luxuries, for lack of a better term, that just plain didn’t exist. Even today, we may not be able to get to Tokyo in 2 hours, but I can wake up in one developed nation and be in practically any other within a day which was unthinkable then. We’re certainly generally better off and happier than we were then, but I wouldn’t call our current state “happy”.

As such, I don’t see how another 85 years would be so substantially different. The biggest issue, in my mind, isn’t the level of technology, per se, but rather the lowest common denominator. Will we be able to use this plentiful energy and cheap food to raise the standard of living in currently developing nations or poverty stricken areas? I think the greatest level of happiness will come from eliminating poverty, not just in the sense of helping those billions, but also in the sense that they’d be able to join the global community and economy.

And, frankly, I really have to call into question your assertion on religion. As much as I’d love to see an end to religious violence, I just don’t see that happening so quickly. I do imagine that cheap and plentiful energy, food, and transportation would probably do a lot of good toward resolving general unrest which probably exacerbates a lot of religious conflict, but in the end, people that believe they need to kill in the name of God will do so. And because that ideology is largely passed from one generation to the next, I’m not even sure how that could be wiped out in just a few generations, short of genocide.

Yeah, like all, or any of that is gonna happen in the next 85 years.

Take for example supersonic airliners, we already had that, and it died, because people didn’t want those things flying over their houses so the routes were incredibly limited.

There’s still money?? Then no.

As a general rule, human happiness may depend less on how things are than on whether things are improving (or, on how things compare to our expectations).

It’s 2100; Is mankind 'Happy"?

Not if we haven’t still mastered the semicolon. Or apostrophe. Or quotation mark. Or capitalisation.