[rkagerer]

Had a similar thought, but apparently skeletons decompose after just 20 years in fertile soil, or a few hundred in sand. I was thinking some kind of artificial replica of cadavers in the most gruesome state we can conjure, made from materials as durable as what you're storing. Or somehow fossilize your thousands of skeletons.

The article mentions culture as the most enduring thing humans have created, in cases having lasted millenia, but I think instinct is even more basic and has been around about as long as we have. Cater to that.

[lloeki]

We have a literal profession whose sole purpose is to carefully dig dirt over extended periods of time to excavate skeletons and attempt to understand their lives and deaths.

I don't think skeletons is a deterrent, quite the opposite.