>>10059136_hGRLOfC01EJ3YztHYB6DNyhgj9uogT40
Burn that excel spread sheet
[A] recursive definition (when properly formulated) never leads to infinite regress or paradox. This is because a recursive definition never defines something in terms of itself, but always in terms of simpler versions of itself.
The serial number of the first MAC ever produced was 2001.