Programming typefaces with ligatures are a step in this direction.
I would try this in something like Haskell, where some of the more exotic character sequences get tricky to recognise.
Unison might be the best language to test this in. Having identifiers separate from the actual definitions, you can call anything whatever you want.
The trick is for those other AIs to reserve a few bucks, so they can repeat the process but this time cash out early. Keep repeating until everybody wins.