Tsunami Warnings, Written in Stone (2011)

There's a 10,000 year clock meant to get people to think long term. Presumably, GP is saying they consider the tsunami stones a source of inspiration.

The website for the clock itself has been on HN before. It can be found here: http://longnow.org/clock/

The Clock of the Long Now: http://longnow.org/clock/ The lecture on the Clock that I saw was recorded. You can see it here: https://www.youtube.com/watch?v=nphxoUxSvgY The remark on the stone in Japan is at about 44:30 into the video.