Yes. This is the technology community, not the buy European one.

Framework is pushing laptops in the right direction.

That requires lots of cropland though. Hydrogen can effectively be made by offshore wind farms etc.

It might work if we reduce standard fuel requirements for cars etc enough.

Electricity has been around that long too though, yet there are no serious electric passenger planes (with a decent range)

It has it’s flaws, but it may have a higher ceiling in terms of usefulness. They say they can make it work, which is more than I hear about electric planes for example.

We should be financially encouraging 0 carbon planes, without controlling how, then let the engineers work what tech to do it with.

What are the other 0 carbon flight options? They are all flawed.

We can engineer our way through flaws with enough effort though.

…then there should be regulatory actions to help make them viable

It depends who you are trying to hide from. A VPN will hide your internet traffic from your ISP/phone company, but obviously not from the site you are visiting.

At best you might be one of may people connecting from the same (VPN) IP address, but they can still collect info from your browser/app etc to generate points to ID you if they want.

You seem to have made 3 posts?