I should have got back to this thread earlier but a couple of quick comments should be made I'd guess.

deedub81, small problem with the study you point to and others like it, and it's one that almost any scientist would grant as a problem if you asked them about it. Couple of problems actually.

First and biggest problem is that it doesn't refer in any way to a blind or controlled study but to a self selected group. Some never try pot at all and some try it and get bored, quit. Some stick with it. What is the difference between them? Is it possible or even likely that there was a difference between them to start with?

Problem with self selected groups is that it tells us nothing about the subject as it relates to the population as a whole. It just tells us about that group. Most people taking nitro have heart problems but the nitro didn't cause it, in the same vein it's possible or even likely that the higher incidence of problems among pot smokers is an indication of attempts to self medicate rather than an indication that it's the source of the problem. We need controlled studies rather than self selected groups to find out more about it.

Second problem is that it's badly overstated. The chance of psychotic disorders among the population as a whole is almost nothing. Almost nothing times 1.41 is still almost nothing. Almost nothing times 2 is still almost nothing. For the vast majority there would be little risk even if pot was a "cause" of problems and pot wouldn't be alone there. Alcohol also has the same effect on a small number of people. Treating equivalent risks in a legally equivalent manner seems reasonable to me but that's not what we're doing. We're treating the one we wonder about more harshly than the one we know is dangerous. Some rethinking of the laws concerned seems due even if the fears are right and it's as bad as alcohol is. I don't think it is though, studied heavily since the 60's and this uncontrolled self selected maybe is the best we've got so far.

On pot growing 24 hours a day, yes it does. So do humans, even when we sleep. Some plants need that sleep or rest period more than others and some in different ways. The Poinsettia we all see in the Christmas season is similar in a way, it won't develop the red color we associate with it if not given long nights. If that dark period is interrupted or cut short it stays green instead of red. With pot the difference is in if it flowers or how strongly it flowers. Nothing but long days and it won't flower at all or might produce a few stray small ones but no real "buds". With long nights but not long enough or occasionally interrupted nights it might flower weakly but not as well as it should and the chance of producing male flowers on a female plant goes up with confused lighting periods.