Assorted links

1. Japanese Excel spreadsheet artist.

2. How quickly are plastic 3-D printed pistols spreading?

3. Outcomes of medical emergencies on commercial airline flights.

4. It seems that more people are renting tires, at net price 3x-4x retail.  Think of it as “first world microcredit.”

5. Controversies over weight and life expectancy.

6. Very good review of the new George Packer book.