Lol #bitcoin is a major topic of discussion here and there is a lot to learn if it's new to you. Nostr also uses it as a method of payment, for tipping the authors of notes you find value in, ect

Some YT videos might be a good place to start if you're looking for a quick & dirty education on it. Once you get a lightning wallet set up you can earn some too if you want.

If you want to find content & people that aren't bitcoin related, click on #grownostr & you'll find people & topics. Hashtags are one of the main discovery functions for now since there are "no algorithms" ... there will still be btc stuff, but lots of other stuff too 😊