It can look dumb, but I always had this question as a kid, what physical principles would prevent this?

  • NGram@lemmy.caEnglish
    2·
    5 months ago

    Relativity would prevent this. If the train moves at the speed of light, then nothing inside it will move because time will stop. The amount of trains inside trains doesn’t really change much except the effect of time dilation (slowdown) on each train. You can’t actually accelerate to the speed of light.