Comment by pama

The ideas are neat and both Landauer and Bennet did some great work and left a powerful legacy. The energetic limits we are talking about are not yet relevant in modern computers. The amount of excess thermal energy for performing 10^26 erasures associated to some computation (of say an LLM that would be too powerful for the current presidential orders) would only be about 0.1kWh, so 10 minutes of a single modern GPU. There are other advantages to reversibility, of course, and maybe one day even that tiny amount of energy savings will matter.