What (if any) difference is gained from shaking an alcoholic drink vs stirring it?

Question

You know the classic James Bond line “Martini, shaken, not stirred” is there an actual difference in the taste of the drink from shaking it vs stirring it?

In: 573

Answer 1

Shaking the drink chips the ice and waters it down.

James Bond is ordering a weak drink and being snobby about it.