In this video, the mathematician at 3:15 moves the second S₂ one place to the right, while solving for 2S₂. How is this allowed?
2026-04-06 17:16:17.1775495777
How is moving one place to the left during addition of an infinite series allowed?
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I asked the question in the comments section of the video, and someone replied with a very simple answer:
So 1+2+3+4+5... = 0+1+2+3+4+5...
Never thought of it that way.