And about me saying caffeine is a placebo effect - no, caffeine's effect is very real, but Redbull contains so small amounts of caffeine that the effect of a Redbull is most likely mostly caused by the placebo effect.
If you dissaprove something having a placebo effect because you can feel the effect, then you're most likely an idiot. The whole point of the placebo effect is that you feel an effect. The effect is mostly psychological and you really have no control of it.
That is complete drivel.
For one, the amount of caffeine needed to stimulate the body is dependent on so many other factors, including size and tolerance. And to label Red Bull as having a small amount of caffeine when it's actually considered to have a high caffeine content by the European Union seems to fly in the face of all logic.
For two Red Bull has been shown in studies to increase cardiovascular function, and various other bodily functions including pain tolerance when compared with placebos. I'll just post a couple of links here for you:
For three, coffee and red bull are not often consumed at the same rate. Coffee is often drunk over a longer period as it cools, whereas Red Bull is often drunk a lot quicker -- causing a sharper spike in blood caffeine levels. Red Bull also contains more sugar than an equivalent amount of coffee, which will also contribute to effects.
Finally, you have no idea what the placebo effect is, and I'll just drop off one of many links that show that in certain tasks (I'm not claiming it to be a panacea, just showing that you are wrong in many instances) Red Bull outperforms placebo drinks and improves both wakefulness and concentration (here measured through a driving simulator).
I won't deny that the belief that you have just consumed an energy drink may compound its effects on your body and brain, however I find it incredibly difficult to believe that the human mind is causing more benefit to energy levels than a large amount of sugar, caffeine and whatever else is in Red Bull nowadays.