hi folks
first time post, i hope you like my idea.
Sledge mentions that there was a smoldering cigarette at the pearl station.
i think this belong to Kelvin.
as yet only Desmond know for sure if Kelvin is dead because he would have seen the body or lack of body when he went back to the boat.
so i think Kelvin knew what was on the blast door map and went to hide the pearl station. from here he doesnt have to think about being the one to press the button, but he can keep an eye on what Desmond is up to, and if he IS pressing the button. plus because he didnt know what would have happened if the counter reached zero, the pearl station would shield him from a blast.
my only question is it seems that the pearl station was locked from the outside, so maybe there is another way inside.