No absolute time
![No absolute time No absolute time](https://world.pulse.rs/wp-content/uploads/2019/09/header_essay-451853068-1.jpg)
Two centuries before Einstein, Hume recognised that universal time, independent of an observer’s viewpoint, doesn’t exist In 1915, Albert Einstein wrote a letter to the philosopher and physicist Moritz Schlick, who had recently composed an article on the theory of relativity. Einstein praised it: ‘From the philosophical perspective, nothing nearly as clear seems to have […]