Replying to
@nobodyzhome@toad.social @hu_logic@mastodon.social @rodhilton@mastodon.social The basic interface of Twitter isn't difficult.
I, and most SW engineers, could write something that resembles Twitter and works for a few hundred people as a weekend side project.
...but getting it to scale to millions of people and synchronize across the globe with redundancy, automation, dealing with attacks, bots and content moderation is a multi year project.
Elon almost certainly doesn't understand the second part.