Is this is general geek trait? I have a (very good) friend who always rubbishes my ideas as unworkable, impossible, idealistic, or whatever. He earns a much bet

Is this is general geek trait? I have a (very good) friend who always rubbishes my ideas as unworkable, impossible, idealistic, or whatever. He earns a much better salary than me but the funny thing is, I got him into tech and taught a _lot_ in the beginning. He gravitated towards the Microsoft ecosystem and I gravitated towards open source so that whenever we find something we would both like to work on we can't agree on the tools! Groooan. He's one of the smartest guys I know and he's always coming up with ideas (as am I in my own way) but whenever I say, come on, let's do one of these he always demurs. (Not that I'm much better.) I love tech and coding but I'm in the process of giving it up to a certain extent for a stint in academia. That was a sly dig at Engerland, right ;-)