I don't know what train you've ridden, but Spain's Ave goes 300 km/h and you don't even notice you're moving. And it definitely doesn't bump at all. You cannot

I don't know what train you've ridden, but Spain's Ave goes 300 km/h and you don't even notice you're moving. And it definitely doesn't bump at all. You cannot notice constant speed but only speed changes (acceleration = force).