I actually like the idea that reddit and Lemmy do a cross platform. If content creators on fediverse can post to fediverse and reddit they wouldn't have opportunity cost in moving to the fediverse and moving content from reddit to Lemmy would give More content

Carbon capture is problematic. If I remember the area required to reduce C02 would be the size of Georgia and the air intake would be pulling in hurricane force winds. The numbers could be off but it would be a massive project that would require to be built by probably CO2 dumping infrastructure like factories.

Personally I'd say it would be better to colonize the Pacific Ocean so algae goes in deep ocean to be a carbon sink

Apparently instances can share IP with each other but only for problematic ip addresses. It's not part of the protocol to give up address of the user

Like the comms would request from the instance your on for their email you used to register? Comms themselves could use email verification

Yes, and I learned to float to swim further

That the experience the issues old people told you about. My lumbar is always achy