[ApesForEvolution]

Where does the knowledge of 'now or later?' come into play? How about "I'm tired, can we do this in the morning?" or "But it was all ON SALE I said..."?

[Cogadh na Sith]

Where does the knowledge of 'now or later?' come into play? How about "I'm tired, can we do this in the morning?"

Y'know, that's a good point and I liked the way you phrased it--kinda gets to the point...

Now consider: What's actually 'tired'? Is it really 'you'? If so, I want to grow me a tail--wouldn't that be cool?

Animals get tired and react to stimulus to rest--only we have an idea that there is a 'morning' ahead.