I just recently read that heat pumps are beating gas furnaces already and on the price trajectories of renewables will be winning easily in the future.
We won't need to focus on the hard things as long as we have sufficient easy things to get done first. For instance I don't think replacing jet fuel is something we should be prioritizing over bringing renewables to developing countries.
> I just recently read that heat pumps are beating gas furnaces already
In general, no. For a few select usecases, yes - particularly highly insulated newbuilds which need very small systems (heat pumps miniaturize better than furnaces).
We won't need to focus on the hard things as long as we have sufficient easy things to get done first. For instance I don't think replacing jet fuel is something we should be prioritizing over bringing renewables to developing countries.