Ok. And Stephen Hawking and Terence Tao and thousands of others are an order of magnitude or more smarter than me. I'm sure it was true in the ancient times as well. One clever monkey does not generalize to the whole species any more than does today.
"...order of magnitude..." - you wouldn't be able to even use internet if this was true, I would say "...somewhat...".
"One clever monkey does not generalize to the whole species any more than does today." - In that case the conclusion is that there was at least one capable abstract thinker before the next one already known.