This week marks the 20th anniversary of Don Eigler’s startling success at being able to move individual atoms around at will. The IBM scientist eventually spelled out the letters I-B-M with 35 Xenon atoms. The process took 22 hours and presumably about a gallon of coffee.

So I proclaim this to be a Happy Very Tiny Things Day. Thanks, Don. You are one of the giants whose shoulders we stand on today, and will even more in the future.