Eli5: I tie both of my shoe laces with the same technique and strength. Why does only one always get untied?

Question

Eli5: I tie both of my shoe laces with the same technique and strength. Why does only one always get untied?

In: Engineering

Answer 1

Left and right handed knots – basically you tie one with the two parts of the knot going in different directions, and this will shake tight The other one is tied so that it will shake loose

https://www.fieggen.com/shoelace/grannyknot.htm has the details of this.