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## Main Question or Discussion Point

I had a thought going in my head today about the uncertainty principle. Forgive me if it sounds too silly.

Consider an electron in motion. Now, suppose that I'm measuring it's position with infinite accuracy. So, by the uncertainty principle, it's velocity is blurry. But what if I measure the position of the electron again, after a very short interval of time, with infinite accuracy? Then, I can compare the distance it has moved from its previous position, and as I know the time taken for the electron to move this distance, i can figure out its velocity. So, I can measure both the position and velocity of the electron simultaneously, thereby violating the uncertainty principle.

So, what is the mistake I've made in this theoretical experiment?

Consider an electron in motion. Now, suppose that I'm measuring it's position with infinite accuracy. So, by the uncertainty principle, it's velocity is blurry. But what if I measure the position of the electron again, after a very short interval of time, with infinite accuracy? Then, I can compare the distance it has moved from its previous position, and as I know the time taken for the electron to move this distance, i can figure out its velocity. So, I can measure both the position and velocity of the electron simultaneously, thereby violating the uncertainty principle.

So, what is the mistake I've made in this theoretical experiment?