The main idea of special relativity comes from two important principles. First, the laws of physics are the same for everyone, whether you're on a train ๐ or in a rocket.
Second, the speed of light is always the same, no matter how fast you're moving. ๐
This was a big change because before Einstein, scientists thought time and space were the same for everyone. With special relativity, we learned that if you move faster, you can experience time differently than someone who is still. This revolutionized our understanding of the universe! ๐