Part 4/8:
No matter how fast someone travels—approaching the speed of light—light itself always travels at a constant 186,000 miles per second (or approximately 300,000 km/sec). This constancy is fundamental in physics but challenges our intuition: how can light maintain this speed relative to all observers?
This paradox raises questions: Are we perceiving light correctly? Are our eyes and instruments truly capturing reality? The speaker points out that human perception is limited—we only see a tiny fragment of the electromagnetic spectrum. Our eyes and even our most advanced equipment are constrained by design and biological limitations.