Eli5: If we use language as instrument of thoughts, how did our ancestors think?

Question

Eli5: If we use language as instrument of thoughts, how did our ancestors think?

In: 8

Answer 1

Abstract thought including language is one of the tent poles of human intelligence. As we made the leap from something that we might recognize as “animal” to something that we might recognize as “human” language was developed. It has a assumed that early humans may have communicated abstractly with non-verbal language earlier like using hand signals while hunting