What was the materials or methods problem that you needed to solve?

So when we look at the Paleolithic times, when you look at a typical excavation that looks into Paleolithic times, what often is the case is that you have a lot of sediment in those sites and then you dig.

And if you're lucky, you'll find one bone, two bones.

If you're super lucky, you'll find a partial skeleton, but never in context.

Because it's so old that it's very fragmented.

And even if there was a burial context, which we don't know, it's not visible anymore.

And so it's basically impossible to direct an object that is found at an excavation to the skeleton.

Correct.