

Ah my bad.
Ya we have to deal with so many vote bots, dead account voters, and vote spying tools now from some instances, that it’s genuinely going to be one of the biggest challenges on the fediverse in the future.
If some special interests set up shop on the fediverse, and upvote their content with a lot of fake accounts, or downvote others views they don’t want popularized, without a way to combat it while still preserving overall vote privacy, we’ll be in bad shape.
Doing any nature related activities away from screens, whether it be daily walks, gardening, hiking, kayaking, mountain climbing, swimming, camping is really good for both mental and physical health.
In that blue zones documentary, it’s said that daily walks and daily gardening help your mind and longevity more than any other activity.
Learning a musical instrument is always good, and is something you can show off. Knitting, crocheting, or any kind of ravelry works your mind, and you can also listen to audiobooks while doing it. Woodworking (you can start small, even doing spoons and things).
I wouldn’t be too focused on doing mentally challenging activities. Screens wear out our brains enough, and what we really need is time away from them to recharge.
Outside of that I’d just recommend reading a lot of non-fiction, audiobooks where available.