[IshKebab]

> I find such a statement to be as lacking in evidence as those that claim humanity has some soul or similar that cannot be replicated.

It doesn't need evidence; it is the null hypothesis.

Brains clearly compute, and it appears that computation is sufficient to produce the observed behaviour of brains. All our experience of the universe and physics suggests that there is no magic or metaphysics or souls or whatever.

So the onus is on you to show that there's something more going on. It isn't a 50:50 "is it heads or tails", it's more like "I claim that the tooth fairy exists" vs "I'm pretty sure it's your mum".