Part 8/10:
The Illusion of White and Brightness on Screens
The misconception that white light is merely "hot" or due to heat is busted by understanding that white on screens is a result of simultaneous activation of RGB channels. The perception of brightness and the effects on the human eye depend on the intensity of these channels and how our receptors respond.
The host explains that black backgrounds on screens reduce strain and power consumption because they do not emit much light, only a faint white mixture achieved by dimming RGB channels. Increasing the brightness causes the mixture to produce more intense white, which can be visually blinding and potentially harmful if stared at for prolonged periods.