Meth is known to cause godlike fearlessness. It is propaganda to think it just makes you anxious, that is retarded. The effects you refer to come from end-stage abuse. If what you said was true they wouldn't have used it. They gave it to kamikaze pilots for fuck's sake. Those jerk reactions you described are only possible when you have been on the drug without sleep for too long or doses to high. Your analysis is not wiser than that of all the leaders of WWII, it is pretentiousness. Methamphetamine is also known to have less "edge" than caffeine. Some experiments were done with the opiate combination with the nazis though it had a code name that started with X.
Come on, dude. Meth is KNOWN to cause these effects:
POSITIVE
increased energy and alertness
decreased need for sleep
increased sociability
mild to extreme mood lift, euphoria
increased sexuality
NEUTRAL
excessive talking
decreased appetite, weight loss
sweating
NEGATIVE
disturbed sleep patterns
tightened jaw muscles, grinding teeth (trismus and bruxia)
loss of appetite (anorexia), leading to poor nutrition and weight loss with heavy use
visual & auditory hallucinations, hearing voices (from sleep deprivation)
reduced enjoyment of eating
loss of interest in sex, over time
itching, welts on skin
nausea, vomiting, diarrhea
dry mouth, leading to serious tooth decay with chronic use
excessive excitation, hyperactivity
shortness of breath
moodiness & irritability
anxiousness & nervousness
aggressiveness
panic, suspiciousness, and paranoia
involuntary body movements (uncontrollable movement and/or twitches of fingers, facial & body muscles, lip-smaking, tongue protrusion, grimacing, etc.)
ego inflation, false sense of confidence and power, ego-inflation
aggressive and violent behavior
severe depression, suicidal tendencies
Effects of Habitual Use
fatal kidney and lung disorders
possible brain damage
permanent psychological problems
lowered resistance to illnesses
liver damage
stroke
cardiovascular crises, chest pains, heart attacks
Damage to gums, teeth, and can lead to tooth loss
Seriously, How does that translate to "godlike fearlessness" ?