SilverProteus wrote:
Besides unpredicatble, they can be dangerous. LSD, for instance, is stored in fatty tissue and can be 'released' when you least expect it. You can 'trip' weeks or even months later, even if you're not taking it anymore. Imagine tripping and driving; not good.
No, LSD is not stored in fatty tissues. THC in marijuana is, though there is no evidence that it is suddenly released - it would happen gradually if a person was fasting, or very gradually otherwise.
There is no scientific evidence of flashbacks. What one person described (flashes of light) are common in people with migraines, even if they never used the drug.
The old idea that LSD scrambles chromosomes is also false - at similar dosages, orange juice and aspirin will interfere with chromosomes in a test tube. It could cause developmental problems in a fetus, or premature birth by stimulating uterine contractions.
The big issues are related to the mind and safety - a bad trip leading to ptsd or an accident, the precipitation of psychosis or depression in people that are susceptible, burn-out in people that take it too many times.