Time as we know it is observable and verifiable Proof of Work.

Sunrise. Sunset. 
Full Moon. New Moon.
Spring. Summer. Winter. Fall.

#Bitcoin’ s Proof of Work protocol balances on top of another Proof of Work protocol known as Time via the 10 minute difficulty target.

Time on Earth is an objective unit of measure that we calculate by observing various Physical Work Cycles/Intervals of the Universe. 

#Bitcoin’s Proof of Work protocol is anchored to God’s Proof of Work protocol. 

What’s not to like?