Can a massive amount of caffeine clear a personage have a feeling invincible as they do on amphetamines and cocaine?

please no lectures! just please answer the questions.
Answers:
No ,
Cocaine doesn't make you quality invincible. Don't know about amphetamines. I heard PCP makes you surface invincible and you don't even feel pain. Cocaine just make you feel awake and want to talk.

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