[soulofmischief]

I agree, but it's difficult to make the criteria objective. "I was drunk last night and I realized X..." vs "Last night, a molecule of alcohol hit just the right neuron and fired off a chain of thoughts that led to a discovery"... Aren't both valid?

[devmor]

If there's no evidentiary reason to assume causal relationship, I would say that's a useless distinction, personally.

There's just as much reason to assume that if you didn't drink at all, you'd have thought of it sooner.