The problem with time travel is that while you are traveling, you acquire the status of a plant (צומח). The distinctive characteristic of a plant is that it can travel through time (at the "normal rate"), but it can't travel through space.

Therefore, by exiting the time machine, you would be performing the מלאכה of תולש, so it is forbidden.

The problem with time travel is that while you are traveling, you acquire the status of a plant (צומח). The distinctive characteristic of a plant is that it can travel through time (at the "normal rate"), but it can't travel through space.

Therefore, by exiting the time machine, you would be performing the מלאכה of תולש, so it would be forbidden.