Easy - in both if you stay the course too long, you become part of a smoking hole in the ground.
Cutting your losses is a tough thing. "Just another second", or "it'll turn around" can easily become an epitaph. At some point, a reasonable person just has to decide to punch out and live to fight another day.
Today I'm going to punch out on the subject of theology. The reason's pretty simple. I've reached a point where I am no longer interested in hearing the arguments. The evidence is compelling enough for me to assume a piori, in any context, that gods don't exist. There's about 10,000 books I'd love to read before I die. I've developed a tin ear to theology. It's all started to sound the same, and it's been years since I've heard a novel argument. Even something as complicated as quantum physics rewards the casual reader with incentives as to why they should dig deeper. The theological reader is treated to archaic thinking, poor logic and circular arguments. If the deists ever come up with some compelling proof, I'll be happy to reconsider. But it will have to be something a lot more tangible than arguments about first causes, etc.
Stripping away all the rhetoric, it came down to this for me - there is ample evidence that the universe came to be through natural means.
I have no quarrel with descent people who feel religion in their hearts and live their lives just because they believe. That doesn't bother me. Some of them actually visit here and I enjoy their perspectives. If it feels like faith to them, and cognitive bias to me, well so what. I can appreciate them as fellow human beings trying to make their way just like me. It's all the Pseudo-intellectual clap trap that annoys me no end. I wish them all well - as long as they stay out of politics. Politicians who hide behind God are still fair game.
I also want to invite anyone who visits this place from time to time to submit guest posts if they wish or request that I respond to something in particular. I won't censor any posts beyond some obvious ones (like Holocaust denial, but I don't suspect that's a problem with this small crew) but I will work to ensure that we all remain civil. (I drafted this on the 15th - funny coincidence)