Skip to content

Comment on Does light have an infinite lifetime?parent

Comments

Photons don’t experience time, from their relativistic frame they are created and destroyed instantly. This is because they are massless and therefore always travel at the speed of light. Due to relativity they experience a different simultaneity - in our reference frame we can observe their emission and absorption as energy and existence and measure them etc but, even given they can’t experience anything anyways, time doesn’t pass for them. This is one of the weirdnesses of relativity.

Right, this would be true if it were possible for a photon to"experience", but at i understand it we currently believe it's not.

AboutSource Built by g1lg1l

Hackerly is an independent reader for Hacker News, built on the public HN API. Not affiliated with Y Combinator.