Thanks for the explanation and I appreciate the candour. I am really surprised by what you say. I didn't expect that my comment would come across as arrogant an

Thanks for the explanation and I appreciate the candour. I am really surprised by what you say. I didn't expect that my comment would come across as arrogant and ignorant. I'm not an expert on physics, and I started my comment by saying "as far as I understand it". Reading it again I can't see that the language I used is particularly emotionally, or otherwise, charged. I also absolutely did not try to claim that "CS is rigorous and quantum mechanics is not", as you took my comment to mean. The conversation here is not about rigour, or at least I didn't realise it was about rigour. Is the "shut up and calculate" dictum about rigour? In the context of the conversation and without looking it up I took it to mean that we should not try to understand and only try to calculate. I didn't put any more meaning on it. I think you (I don't know about the other users who downvoted my comment) misunderstood both the meaning and the intent of my comment. May I suggest that clarifications should be sought, in the future? Not that it will kill me to have my comments downvoted once in a while, it's just that this time I really didn't understand what I got so wrong. EDIT: >> There is a tendency of someone well learned in one subject (eg CS) deciding that makes them an expert on any subject they casually observe. This is very off-putting. I'm with you on that, but I think if you look through my comments you'll see that I generally only discuss things I know. In particular with physics, I read but not comment on such conversations because I'm really not an expert.