Connected to example.fi.
    Escape character is '^]'.
    /home/example/services/ircd/ircd.sh: fork: retry: Resource temporarily unavailable

Ok, this is half humorous and half serious. But I'd wager that the answer is non-zero.

This is all just anecdotal, obviously, but I think childless humans with pet indoor dogs could have less of a desire to procreate for various reasons, but perhaps mainly because the instinctual thirst to care for a living thing is quinched to some extent when you have a pet indoor dog.

Obviously not every or most or even many. But perhaps _some_.

It's not entirely surprising that both of these world champions saw that as a way to keep the game interesting.

Something else that Magnus sometimes does, even against fellow grandmasters, is play a completely ridiculous opening that's obviously bad. But more importantly, it's different, and all the existing opening theory goes out the window.