It took approximately an hour after Ozzy Osbourne died for every single Black Sabbath video on YouTube to be inundated with “R.I.P. Ozzy” comments.

The wheel has had a number of innovations over the years. The earliest wheels were flat disks of wood that were heavy and slow turning. The Romans invented spokes and metal rims which made them faster, more durable, and gave them more traction. Questions we need answered: What is this wheel in particular designed to do? Is there any way we could make it work more efficiently at its task? Do we value performance over reliability, or vice versa? Etc. Etc.