fosstodon.org is one of the many independent Mastodon servers you can use to participate in the fediverse.
Fosstodon is an invite only Mastodon instance that is open to those who are interested in technology; particularly free & open source software.
If you wish to join, contact us for an invite.
Elon Musk is not a visionary, he's just a really good salesman. If you want someone who pushed all of Elon's proclaimed innovations then just look at the engineers he has under his employment.