Science reduces the question what light is to what it does but the mystery remains that it does what is physically impossible. Even after centuries of study, physics still can’t explain why:
1. Light doesn’t fade. All physical waves diminish in amplitude over time, by the second law of thermodynamics, but light doesn’t do this. A photon that has traveled for millions of years gives the same receptor result as one that was just made.
2. Light has a constant speed. The speed of a wave depends on the medium it travels through, but light travels in the nothing of space at a constant speed for no physical reason.
3. Light is a wave and a particle. Waves can’t physically act like a particles, nor can particles act like waves, but light spreads like a wave then arrives at a point like a particle.
4. Light always finds the fastest path. A physical particle can’t know the fastest path to any possible point in advance, but light always finds the fastest path to any destination.
5. Light chooses its path after it arrives. A physical particle can’t choose the path it takes to a destination after it arrives, but light seems to do just that.
6. Light can reveal an object it didn’t physically touch. In a purely physical world, it shouldn’t be possible to detect an object without touching it, but light does exactly that.
7. Light vibrates outside space. Light vibrates into a dimension that doesn’t physically exist.
Most scientists assume that light is physical but physical causes can’t explain what it does. This is exemplified by wave-particle duality, that light is sometimes a wave and sometimes a particle. A water wave doesn’t arrive at a point like a particle, but light does. A particle doesn’t travel in many directions at once like a wave, but light does. Physical waves don’t act like particles, and particles don’t act like waves, so how can light act like both? Surely science can decide if light is a particle or a wave?