Educate yourself. Light forms an interference pattern, like a wave (same as in the ocean). A stream of electrons also forms this interference pattern, electrons can act as waves. Put one single electron through, and you still get an interference pattern. 2 places at once, experimentally verified and so easy you can do it yourself if you don't believe me.

Light also must act as a particle to create the photoelectric effect. If it acted like a wave, then the intensity (amplitude) would define how much energy it gives to the freed electron. It doesn't, frequency does.

Wave-particle duality is experimentally verified.

The element of probability comes from Heisenberg's uncertainty principle, which means that practically, by measuring something you must change another of its properties, and so cannot know everything about something at one point in time (eg velocity and location). So we can't know where any given electron on an atom really is, we can only assign probabilities.

And that guy in the video is pretty crap tbqh. Light acts LIKE a particle in some scenarios, and LIKE a wave in others. It really isn't either or, and scientists aren't confused or puzzling to find out which it is. Light is light, waves-particle duality is just a metaphor to explain its behaviour.

Also, light isn't invisible. It's the only thing that is visible in the entire universe.

Light = photons / Electricity = electrons (subatomic)