[OT] [I mean totally OT] Re: What can you "new"

[Walter Bright]

Andrei Alexandrescu wrote:
> My list:
> 
> - wheel
> - fire
> - smelting metals
> - writing
> - arithmetic

But humans had fire 20,000 years ago! I think fire goes back a lot 
longer than that. I also suspect that simple arithmetic is innate, 
although a numbering system is not (see Mayan and Roman number systems).

Wouldn't the wheel be useless to a hunter-gatherer tribe?