Management consulting firms have lots of great ideas on slide design: https://www.theanalystacademy.com/consulting-presentations/
Some things they do well:
They treat slides as documents that can be understood standalone (this is even useful when presenting, as not everyone is following every word)
They employ a lot of hierarchy to help make the content skimmable (helpful for efficiency)
They put conclusions / summaries / action items up front, details behind (helpful for efficiency, especially in a high trust environments)
We can already see what people do with their free time when basic needs are met. A number of technologies have enabled new hacks to set up ‘fake’ status games that are more positive-sum than ever before in history:
Watch broadcast sports, where you can feel like a winner (or at least feel connected to a winner), despite not having had to win yourself
Play video games with AI opponents, where you can feel like a winner, despite it not being zero-sum against other humans
Watch streamers and influencers to feel connected to high status people, without having to earn respect or risk rejection
Get into a niche hobby community in order to feel special, ignoring the other niche hobbies that other people join that you don’t care about
Feels likely to me that advancing digital technology will continue to make it easier for us to spend time in constructed digital worlds that make us feel like valued winners. On the one hand, it would be sad if people retreat into fake digital siloes; on the other hand, it would be nice if people got to feel like winners more.