Scientists have discovered  that while regular coffee drinkers "feel alerted by caffeine, especially by their morning tea, coffee, or other caffeine-containing drink, evidence suggests that this is actually merely the reversal of the fatiguing effects of acute caffeine withdrawal."

Same diff, I say.

Does it really matter if that little pick-me-up is real, or an illusion?  Especially when some other scientists — those wacky "string theorists" namely — "are exploring a possible scenario in which people and the world around us are actually a 3-D holographic projection of two-dimensional data that exists outside the accessible universe."
 
Even if it is (and it sounds perfectly plausible to me) I still need my holographic coffee in the morning.  Some of us 3-D projections have to work for a living, y'know?