But we don’t need “unknown technologies”. We have dozens of known technologies that would be a substitute for oil. The only problem is that all these technologies are more expensive than oil, some of them much more expensive.
And this is why we continue to use oil rather than alternative fuels. At some point oil will become more expensive than a range of alternatives, and then we’ll use the alternatives. This doesn’t mean that by magic future-tech armwaving the alternatives will become cheaper, it means that oil will become more expensive.
We already know how to convert coal into liquid fuel. We already know how to power cars by natural gas, or propane, or alcohol, or hydrogen, or any liquid or gaseous fuel you care to name. We already know how to make electric cars. We already know how to make super-efficient vehicles for conventional fuel.
We already know how to do it, it’s just that no one wants to do it because it would cost more and deliver worse performance. You can trade in your SUV for a Prius today. You can trade your sports car for a moped. You can trade your single-occupancy vehicle for a bus pass. You CAN, but you don’t, because you’d rather not. Because despite the fact that you could have bought a more fuel efficient vehicle, the one you have suits your needs better, despite the problem that you pay more for fuel. And that’s because fuel cost is only one factor in your transportation budget. There’s also time, hassle, vehicle cost, maintenance cost, vehicle performance, coolness, and on and on.
Except, in the future world of the future, the relative cost of each of these factors will be different. If gasoline is $8/gallon you start looking enviously at your neighbor’s moped every time you fill up your SUV. But $8/gallon gas isn’t the end of the world, simply because you CAN get yourself a moped. You can get yourself an electric car, nevermind that it has a 40 mile range and doesn’t have the performance of your Porsche, it still gets you from your house to your office every day.
This isn’t magic. This isn’t wishful thinking. The technology we’ll use when gas is $10/gallon is already on the shelf. You could buy it today, and plenty of people already have. The reason most people haven’t is that gas isn’t $10/gallon, it’s $3/gallon. As of today.