The Natural Abstractions Hypothesis usually gets separated into two seperate claims:
The Universality Hypothesis and The Redundant Information Hypothesis.
The Universality Hypothesis basically claims that natural abstractions exist, because many intelligent agents learn similar abstractions.
Source: Chan, L., Lang, L. and Jenner, E. (no date) ‘Natural Abstractions: Key claims, Theorems, and Critiques’. Available at: https://www.alignmentforum.org/posts/gvzW46Z3BsaZsLc25/natural-abstractions-key-claims-theorems-and-critiques-1 (Accessed: 19 March 2023).