The temperature on the Fahrenheit scale at which all molecular motion virtually stops is -459.67°F. This is equivalent to absolute zero on the Kelvin scale, which is the theoretical point where all matter has zero thermal energy.

It's important to note that:

* Absolute zero is a theoretical limit: While we can get extremely close to absolute zero, it's impossible to reach it completely.

* Even at absolute zero, there's still some quantum motion: According to quantum mechanics, even at absolute zero, there's a small amount of residual energy and motion that can't be eliminated.

Therefore, while -459.67°F is the theoretical point of zero molecular motion, in reality, there will always be some minuscule level of movement at any temperature.