It's already feasible in parts of the world, Iceland being one of the best examples. Places like Cornwall in the south of England could be made to have geothermal with a bit of work and there's many locations around the world that lie between the two. It's a great resource that offers eye watering amounts of power, readily and easily, 24/7 reliability and with no greenhouse gases.
The issues come for the rest of the world in that you need to dig deeper to get the right heat but that's > just> engineering and we've overcome similar extremes before, seee off shore drilling/wind turbines etc.. Money and time is something that's needed. Money seems to be less available which is mine numbingly frustrating given the damage that's coming if we don't get our shit together. Time is something we don't have in abundance especially with what little money there is.
It's something I hope we see a lot more of but I'm a pessimist these days so I'm not holding my breath.
Entirely valid and I agree that continual growth is right at the heart of most of our problems. I guess most of my frustration comes from the fact we've had at least 40 years of warning, 20 more years of proper, severe warning and promises for action and now that we're seeing day in, day out that all the warnings were right, we're still not moving with any real purpose. I genuinely thought that COVID would show us what we need to do and how we could do it but nope, slipped right back into business as usual.