> do not have enough energy to produce enough synthetic fuels to cover the same amount of oil and gas that we use today
We’re not jetting around at Mach 9 today. Or tomorrow. Rotating detonation engines [1] are closer to basic research than commerce. The earliest this could be technologically viable is in the 2030s; commercially, the 2050s. (That is ambitious.)
At the point we might consider scaling such kit, our options will be less limited (or we’ll have consigned ourselves to doom). If they aren’t, we can choose not to use it for passenger travel.
We’re not jetting around at Mach 9 today. Or tomorrow. Rotating detonation engines [1] are closer to basic research than commerce. The earliest this could be technologically viable is in the 2030s; commercially, the 2050s. (That is ambitious.)
At the point we might consider scaling such kit, our options will be less limited (or we’ll have consigned ourselves to doom). If they aren’t, we can choose not to use it for passenger travel.
[1] https://en.m.wikipedia.org/wiki/Rotating_detonation_engine