[danwills]

Yeah that was my original interpretation of the title too! Perhaps something like:

How did early humans understand their situation and what did they think the 'world' was like, and what did they think they should do with their lives?! I find it fascinating to think how that longing to know what it's all about has changed so much for humans over time.

Mirrors are still heaps interesting though, as is reflection/refraction/light-transport in general I'd say! But it wasn't about what I expected when I read it.