The 'Russian Peasant Multiplication' -- closely related to Ancient Egyptian mathematics and binary number systems

  Here is a fascinating Numberphile video from 2020 that shows the 'Russian peasant method' for multiplication. How is this the same and different from Ancient Egyptian multiplication? Why are they equivalent?

Numberphile Video (approx 5:00) < https://youtu.be/HJ_PP5rqLg0>