Who needs drummers these days?

Someday the machines do all the songwriting too, and then they learn how to jam, and then they learn how to get better on each instrument, then they start to choose who they play with. THEN, when they can't find good enough players anymore, the guitarists start to use drum machines. Then the guitar machine's drum machine and the guitar machine start to fight amongst them selves and suddenly it's war all over and everything dies. And only the spirits wander over the waters. Then...