Really cool insight. I'd also add dark energy and accelerating cosmic expansion to this list. Without acceleration the size of the observable universe would kee

Really cool insight. I'd also add dark energy and accelerating cosmic expansion to this list. Without acceleration the size of the observable universe would keep increasing with the passage of time since the Big Bang. That would mean processes running on cosmic timescales could potentially entwine an exponential number of bits. But with dark energy the size of the observable universe will plateau and start shrinking past a certain date. That caps the number of bits accessible on a cosmic scale.