@philosopher Not opposed to the research, just pointing out that “OMG Hydrogen Economy” isn’t an instant answer.
The solution I like best is creating hydrocarbon chains (“somehow”), which we can then use to run fuel cells. Fuel cell spits out water & graphite dust (collected for re-use). This technology is a long way out (creating hydrocarbon chains, and getting a fuel cell to use them and not spit out CO2 are the tricky bits). This solves the density & transportation problems (we already have the infrastructure for distributing hydrocarbons).
Note that I’m all in favor of both directed and non-directed research. Just that we’re a long way off from anything close to replacing our fossil fuel with anything practical. Advances in engine/motor technologies, fuel cell technologies, battery technologies area ll getting us closer.