Another thing to note is that sparsity is being leveraged even to build a more efficient version of hardware. A good example of this is the Cerebras Waferscale

Another thing to note is that sparsity is being leveraged even to build a more efficient version of hardware. A good example of this is the Cerebras Waferscale chip that was announced recently. I'm assuming the author was unaware of developments on the hardware side of things.