geek wrote:The only reason the time lords could only regenerate a certain number of times was because their lords had decided that. Since Galifrey has been destroyed there is now (in theory) nothing to stop the doctor or the master regenerating as many times as they want to.
I don't think that that is correct, I think there's a physical limit (well, as much of a physical limit you can have in a fictional show using a fictional process). Being quite nerdy here, when the Doctor was on trial (for what, I can't remember now) he was being tried (as it was later discovered) by a future incarnation of himself. This future incarnation was on his last regeneration and was trying to steal regenerations from his earlier self so that he could go on living.
The master also ran out of regenerations at one point, he only carried on living because he took a human as a host for his spirit - this host was sucked into a black hole within the TARDIS. The Time Lords then resurrected him somehow to fight in the Time War.