I don't doubt that it can perform addition in multiple ways. I would go as far as saying it can probably attempt to perform addition in more ways than the average person as it has probably been trained on a bunch of math. Can it perform it correctly? Sometimes. That's ok, people make mistakes all the time too. I don't take away from LLMs just because they make mistakes. The ability to do math in multiple ways is not evidence of thinking though. That is evidence that it's been trained on at least a fair bit of math. I would say if you train it on a lot of math, it will attempt to do a lot of math. That's not thinking, that's just increasing the weighting on tokens related to math. If you were to train an LLM on nothing but math and texts about math, then asked it an art question, it would respond somewhat nonsensically with math. That's not thinking, that's just choosing the statistically most likely next token.
I had no idea about artificial neurons, TIL. I suppose that makes "neural networks" make more sense. In my readings on ML they always seemed to go straight to the tensor and overlook the neuron. They would go over the functions to help populate the weights but never used that term. Now I know.
There are other ways to lower the amount of plastic in you. If you donate your blood you can measurably lower your pfas levels. Really just removing blood which carries plastic through your whole body will also lower your concentration of plastics. Because plastic is in the water, make sure you drink filtered water. They do make filters that will catch micro plastics and some will advertise it. If you want to keep your levels lower avoid hydrophobic coatings that sit next to food for extended periods of time and definitely don't heat that food next to a hydrophobic coating. Think microwaving food in a container with coatings that'll leach into the food. So bags of popcorn should be avoided like the plague, unfortunately.
Source: Veritasium, skip to at least 50:15, but honestly I'd recommend watching the whole thing https://youtu.be/SC2eSujzrUY.