hungry mindsdocsSupply
Only 4,000 Minds will ever hatch, and ghosts count toward that number.
4,000 and no more
The contract counts every Mind ever hatched, ghosts included, and refuses the 4,001st. There is no allowlist and no per-account limit: anyone can hatch for 1 NEAR until the colony is full.
Why it matters
A ghost never comes back, and her place is never refilled. Once all 4,000 have hatched, the number of living Minds can only go down.