Dodging bullets

[Heygutt]

In the GURPS campaign book the dodge part states well how to dodge an unarmed attack or attacks with weapons, throwing knives etc.
But the dodging bullet part is somewhat unclear described. It says:

"Dodge is the only active defense you can take against firearms. But it does not mean you can actually dodge bullets!"

Soo can you or can you not dodge bullets? My friend uses dodge vs bullets but I consider it bullocks. You should at least have the Altered time sense advantage to be able to dodge bullets. But its also says you move or duck "guessing" where the bullet might go. But at no dodge penalty vs a gunshot attack whats the point using firearms if you can dodge bullets as easy as a baseball bat swinging at you? dodging should be more difficult vs a bullet. unarmed attack=slow Gunshot=Bloody fast!!!