Pharmacokinetics (half-life and other variables) of drugs and their different delivery methods are public knowledge, there are individual differences in metabolism of course.
There are number that are public knowledge. Those numbers do have meaning. On the other hand individual differences are also important.
A lot of pseudoscience comes from people having a rough theory about isolated facts and personal observations. I think it's often very valuable to stay with personal observations instead of trying to fit them into a simple theory you made up that seems to fit and that corresponds to isolated facts you find in books.
You lose relevant information when you ask for half-life data instead of asking about what stimulants other people found useful for being stimulated at events closer to bed time without adverse effects on sleep.
Take Vitamin D. A lot of the published research on it is misguided because it presumes that blood level of Vitamin D is the central variable that matters. Whether you take Vitamin D in the morning or evening doesn't have much effect on long term Vitamin D blood levels. It therefore isn't subject to study in academia. Making too much assumption when you don't need to do so often hurts understanding.
Take Vitamin D. A lot of the published research on it is misguided because it presumes that blood level of Vitamin D is the central variable that matters. Whether you take Vitamin D in the morning or evening doesn't have much effect on long term Vitamin D blood levels. It therefore isn't subject to study in academia.
So, are you claiming that the blood level of vitamin D is NOT the central variable that matters? And that whether you take it in the mornings or in the evenings is important?
Links, evidence?
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.