What has it got to do with anything whether brains function like computers? This is only relevant if you define thinking as something only the brain can do, and then nothing that doesn't work like a brain can think. This would be like defining flight as "what birds do" and then saying airplanes can't fly because they don't work like birds.

And then what do you even mean by "a computer?" This falls into the same trap because it sounds like your statement that brains don't function like a computer is really saying "brains don't function like the computers I am familiar with." But this would be like saying quantum computers aren't computers because they don't work like classical computers.

To use your own example, it's relevant because the definition of "flight" that we apply to planes is not as versatile as the one we apply to birds.

To put this in terms of "results", because that's what your way of thinking insists upon, a plane does not take off and land the way a bird does. This limits a plane's practicality to such an extent that a plane is useless for transportation without all the infrastructure you're probably ignoring with your argument. You might also be ignoring all the side effects planes bring with them.

Would you not agree that if we only ever wanted "flight" for a specific use case that apparently only birds can do after evaluating what a plane cannot do, then planes are not capable of "flight"?

This is the very same problem with "thought" in terms of AI. We're finding it's inadequate for what we want the machine to do. Not only is it inadequate for our current use cases, and not only is it inadequate now, but it will continue to be inadequate until we further pin down what "thought" is and determine what lies beyond the Church-Turing thesis.

https://en.wikipedia.org/wiki/Church%E2%80%93Turing_thesis#P...

Relevant quote: "B. Jack Copeland states that it is an open empirical question whether there are actual deterministic physical processes that, in the long run, elude simulation by a Turing machine; furthermore, he states that it is an open empirical question whether any such processes are involved in the working of the human brain"