It is _technically_ viable as a replacement for hydrocarbons. As in, it could replace all energy generation from hydrocarbons, with room to spare. It is not cur

It is _technically_ viable as a replacement for hydrocarbons. As in, it could replace all energy generation from hydrocarbons, with room to spare. It is not currently _economically_ viable, however. This is what R&D and adjustments to regulations are supposed to help with. But then, wind and solar aren't economically viable either, and everyone is pushing them like crazy.