**Infernal wrote:**

What this means is that whatever choice you make now (to switch or not) has the same probability. When you first chose the door you only had the 1% chance. Now if you switch you have the 2/3 chance but the choice of keeping the door also has the 2/3 chance (is this right?). I just imagine that it would be just like reselecting the door after the host shows what is behind certain unselected doors.

No, the other door has a 99% chance of being the correct door. The door you have initially chosen has a 1% chance of being the correct door. This makes it very obvious that you should always switch.

OMG, what happened to my thread?!?