Yes, you are right - if You apply enough deconstruction and reductionism all communication between humans breaks down. But I still believe that there is a profo

Yes, you are right - if You apply enough deconstruction and reductionism all communication between humans breaks down. But I still believe that there is a profound difference between Your example and the "eternal life" bit. I'm not sure if I can get my point clearly (because its still intuition and not nicely expressed thought), but still, I will try my best. "Merge sort has a time complexity of O(N log(N)) in the worst case" at this point and time has exactly one meaning because it addresses exactly one simple (but not simplistic) abstract problem of comparative assessment of algorithms for ordering symbols that have enough relations defined to be comparable. And the logic that stands behind it can be quite easily followed straight to the roots (or rather axioms) without anyone being burned on metaphorical cross along the way. There is no schism here, no cults, event not too many people with different opinions (there are surly some with different axioms and some with different opinions about reducing sorting worthiness to one scalar value). Meanwhile if You get out of Your bubble and start asking what does it exactly mean "eternal life" or event better, as You mentioned, "what's heaven?" You will get as many answers as You will find people (home exercise - go ask a modern Jew about heaven, or Yehova witness, or Mormon :)).