Thinking without the concept of number

Read about the remarkably limited language of the Piraha Tribe of the Amazon in this article - they literally have no concept of number.

Further, "No one paints and there is no art."

"Whatever isn't important in the present is soon forgotten...Very few can remember the names of all four grandparents."

No wonder there's only about 350 of them - could their in-the-moment-only life support more? Very, very doubtful.

Hyper-Empirical Language and Thinking

Linguistics researcher Daniel Everett talks about the Amazon Basin's Pirahã people's hyper-empirical language. Their grammar would likely be cumbersome when trying to express something complex, but, surely, it would reduce any tendency to think in floating abstractions!