Neither of them can be used as functional tables.
Your parents would know!
Because they only use half pipes.
Most complex life forms are a tube within a tube, and the internet is more like a series of tubes.
One is a hollow cylinder and the other a silly Hollander. Source (Cause I can't claim fame for Victorian era jokes):
They both fight against Tartars.
We can't even get FIVE DENTISTS to agree on a toothpaste. That's why.