Your understanding of the world can start to diverge from reality if not earthed every now and then.

Make sure you don't go for too long without talking to friends you trust about what you're thinking. This will help keep you grounded in reality.

Otherwise, you're at risk of billionaire poisoning.

@dwm literally you need someone in the pub to say “come off it mate” every so often
@tommorris Egos can experience both hypertrophy and atrophy, it turns out, and both are bad.