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seiqooq t1_it40uw6 wrote on October 20, 2022 at 7:44 PM

Reply to comment by ABCDofDataScience in [D] Simple Questions Thread by AutoModerator

It’s a bit of a rabbit hole, but this is required for autograd to create the reverse computation graph (enables backpropagation). PyTorch has great videos on YouTube if you want to dig in, just search PyTorch autograd.