Hmm... This has me wondering if I go about comforting people properly. A friend of mine is going in for surgery and I told her, "The procedure is fairly minor, so there probably won't be any complications." Would, "It's going to be okay." be better? I mean, I can't possibly know what the outcome will be beyond some vague probability, so it seems a bit false.
Then there is the issue of more uncertain calamities. Does "it's going to be okay" work in those instances? What if things are quite likely to go awry? It is usually my tract to tell people I hope all goes well, but that is about all I have to offer. Is it better to present people with comforting lies, and if so then what are the limitations one sets on this practice?