I get that. But as a tech guy I sometimes get itchy when the actual reality of things is ignored. A good example would be when a customer demands something that

I get that. But as a tech guy I sometimes get itchy when the actual reality of things is ignored. A good example would be when a customer demands something that is mathematically or physically not possible. With wishes like these you could the do the planning poker all day and maybe land at a compromise that is still not possible. As a former freelancer I am a big fan of just getting a thorough explaination of the problem, maybe with me looking over the shoulder of someone who has to solve it currently. And then I vanish in a hole for a few days and return with the design proposal I think would most elegantly, reliably etc solve the problem. Unless we are speaking about people who have good experience with complex problems, most people are okay at describing their problems, but suck at proposing solutions (they are always modelled after the limited things they know).