What are your current living circumstances? As in, are you in a city, a suburb, or rural area? And do you have financial security and potentially a surplus?

I ask since many hobbies and things to learn could cost money, space, or both. When I used to be in a congested city with no financials, things I’d learn were mostly computer based: writing stories on LaTeX, making a html portfolio, etc. Later, I got into building and flying RC airplanes which truly takes my mind off things and gives a relaxation feeling while flying. Now, I attend various seminars and lectures of different disciplines since it’s a no-pressure way of learning random cool stuff.

Having just 3.5% of the population protest nonviolently would be enough. Speaking of which, the next No Kings is on March 28th!

You might be interested in “silvopasture”

This. Much of human history has been reliant on renewable energy (firewood, food, heating, etc), and it is only the past 200 years or so that fossilized biomass has been a thing. Exotic materials can also be avoided with techniques such as concentrated solar power for high temperature manufacturing (see Odeillo solar furnace), manufacturing at sites of energy generation (eg wind mills for “milling”), and Stirling engines.

I’ve been seeing a lot of research on reversible fuel cells, hydrogen safety, and using hydrogen as storage for renewable surpluses. I’m curious to know what sources lead you to believe that hydrogen is “a dead end”.