T-Rex: Let's suppose we all have cows! Ladies and gentlemen: this is totally awesome.
T-Rex: Now we all have cows!
T-Rex: But let's also say we all share a field for them to graze in. The problem is that any field can only support so many cows -- any more and those ladies will gobble the grass faster than it can regrow!
Dromiceiomimus: So it's in our shared interest to not overcow the field.
T-Rex: NO OVERCOWING. Yes!
Utahraptor: But if I add just ONE extra cow, it's not going to be the end of the world.
T-Rex: Exactly!
T-Rex: But the tragedy is we might ALL rationally conclude "one more cow won't hurt", which destroys the field! Worse, we can foresee this situation, and realize our only option left is to get all our cows in the field as quickly as possible, BEFORE it's gone.
Utahraptor: That's pretty terrible!
T-Rex: To conclude: this is why I got the heck out of authority-free shared land cow ownership!
T-Rex: S-T-R-E-S-S.
