I was responding to "Look at an image for a second. Can you only remember 10 things about it?" I didn't think that was a fair characterization. I see you probably specifically meant 10 yes/no questions about an image, but I don't think yes/no questions are a fair proxy for "things".
In any case you can read the preprint here https://arxiv.org/abs/2408.10234v2 and they make it immediately clear that 10 bits/s is an order-of-magnitude estimate, and also specifically list (for example) object recognition at 30-50 bits/s.
Where are you seeing "blockchain"? Looking through the (scant) documentation on GitHub, they explicitly do not use blockchain: https://github.com/plebbit/docs/blob/master/docs/learn/intro.md "Running a full node takes a few seconds, since there is no blockchain to sync."
Another link someone gave: "We propose solving the data problem by not using a blockchain..." https://github.com/plebbit/whitepaper/discussions/2