Happy Earth Day To A Grounded World
Happy Earth Day, tired world. You made it this far. You are 4.543 billion years old today

That’s four point five, four, three years, and a bit to fudge around with, as every mother ought to fib a little about her age.
These last few years of your birthday, what humanity calls Earth Day? If all your eons were pictured on a clock, that last few seconds before midnight would be…