My own experience has been that long hours tend to correlate with short time windows. If you're in a "deal" oriented business, where deals have a finite and sho

My own experience has been that long hours tend to correlate with short time windows. If you're in a "deal" oriented business, where deals have a finite and short shelf-life, then that's absolutely normal. But tech? Maybe game dev. during crunch time. Poorly managed startups could probably also fall inside that...but then again, it really depends on the work / product, and if it's something that needs to be released urgently.