This is more a conceptual question, but after watching several videos about Quantum Mechanics, I noticed a little discrepancy about an explanation of the double slit experiment and it's implications. According to one video, the electron fired traveled through both slits at the "same time as a wave a potential and interferes with itself". "The electron goes through both slits, just one, and none all at the same time." The other video describes the wave as a wave of probabilty. The electron really goes through just one slit, but we don't know which one. Any clarifaction on what happens during the double slit experiment would be helpful. Thanks.