It's an interesting article but I fail to see the point they are trying to make. I always thought of reversible computing as a sort of platonic ideal that cannot truly exist in real life, but the principle can still be used to reduce waste heat and energy use. For example, it will be interesting to see if the chips from Vaire ever become practically useful:

https://vaire.co/

https://spectrum.ieee.org/reversible-computing

The author should write a followup article about how theory of computation has failed because nobody makes a Turing machine with enough tape.