Bernoulli goes both ways and in this case I think the other way makes more sense. Force of air on the wing is net upwards, therefore the pressure at the bottom

Bernoulli goes both ways and in this case I think the other way makes more sense. Force of air on the wing is net upwards, therefore the pressure at the bottom of the wing is higher than at the top, therefore, by Bernoulli's principle, the airspeed at the top is higher than at the bottom. Since we are trying to give higher order explanations for lower level phenomena you can probably dissect this a thousand different ways and conclude "it's not that simple", but I don't believe this explanation is wrong at the granularity at which it functions, and it really is quite simple. (edit) Furthermore the detail of the air speed difference is not even relevant for the explanation mansoor_ gives, so I would hesitate to call it "conflicting evidence". Of course you can demand of a high level theory that it explains a fact which is not necessary for the high level theory to function, and then say that it's not as simple, but I don't think that's fair.