But the PDA in The Dig is pretty much timeless. It seems to have been inspired by the wave of early-1990s stylus-and-LCD-screen tablets that were in vogue at the time, but it’s simple enough that it hasn’t aged. It even makes sense in context because NASA was hot for the latest tech gadgets.

I too remember the turtle puzzle. It’s sadistic. The interface implies that all the bones should go inside the shell, but they don’t. And there are two things that look like a skull, but one of them is actually the tail. And the thing that looks like a hip-bone actually *is* a hip-bone, but it doesn’t go where you’d expect, because where are a space turtle’s hips? Where are a space turtle’s hips?

Where are a space turtle’s hips? Where?

Glad you’re enjoying the series! And apologies for the slow reply, I’m not great at responding to feedback on here.