Douglas Phillips4 said:6. So, here’s my takeaway from your posts. You basically said that only God or Mother Nature (depending on your worldview, I guess) can make those "pieces of the puzzle" fall into place, but that we shouldn't try to rush the process. Ultimately, it all comes down to that, right? Whether someone smokes or not, it’s just a matter of time... I don't see it that way at all. Or maybe I missed your point, but there's always the possibility 🙂
Alright, let me try that again:
When I talk about the "pieces falling into place," I’m referring to the entire biological cocktail required for someone to develop cancer. We're talking genetic predispositions (if they carry a specific marker), spontaneous somatic mutations that accumulate over a lifetime, the sheer statistical chance that a mutation hits something critical like the p53 gene, and the probability that your immune system fails to catch a transformed cell... plus a whole host of other variables. Essentially, it's everything that falls outside of an individual's active control.
Furthermore, if a person lives long enough, anyone could theoretically develop a tumor. Given enough time, there's a window for every single one of those factors I mentioned to manifest.
For some people, the necessary conditions won't all align, so even if they smoke, they might never get lung cancer (a small minority). Conversely, someone who doesn't smoke might still end up sick.
To ensure all these factors pile up, you can essentially "help" the process along—for instance, by smoking. Smoking massively increases the odds that all those pieces will line up, because it literally induces some of those factors directly; cigarettes contain carcinogens that can transform a healthy cell into a tumor cell. That doesn't mean the person has cancer *yet*, but remember, you still have to account for all those other variables I listed...
Since secondhand smoke is a slightly milder version of being poisoned, it generally takes longer to work, but it's still a highly effective way to stack the deck in favor of all those factors aligning.
So, yeah. This is a very simplified version of what I mean. 🙂