I've always seen Russell Brand -like many street preachers- as something similar to the raw verbal intelligence we see now in LLMs: capable of bringing a stream of words with interesting derivatives, easily interpretable as agreeable and intelligent, and then hallucinating a little. Yet in the depths of those regurgitated concepts that are a mix of things you've already seen, you search for glimmers of any abstract idea that you haven't thought before. Something that tickles your brain. And you find none.
He also has good timing.