Reality Is Out to Lunch: Difference between revisions

{{trope}}

 

 

 

== Music ==

 

 

** In particle physics reactions, there can exist "virtual" particles which have invariant mass much different than what would be that particle's usual mass (if that particle weren't extant only as part of a reaction). Example: An electron and an antielectron (positron) annihilate, to form a single photon that has mass equal to the total center-of-mass energy of the two electrons, then that photon decays after a time to an electron and a positron with the same center-of-mass energies as the originals. A free photon would normally have zero mass and not decay, but here the virtual photon has mass, but decays - almost literally it is "Reality is Out to Lunch," and when reality "catches up" with the improperly-massed particle, it decays. Or at least that's one way to think about it. Of course, this is a "cartoon" picture, since in real life it's impossible to "see" the virtual particles, so it's hard to say whether they "exist" or not.

* A lot of higher mathematics invokes this trope, playing around with imaginary numbers, hypothetical spatial dimensions, and conceptual permutations of infinity.

 

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