So despite your claim that it's 'very easy to do', in the very next paragraph you are basically saying that you need to be around people who 'mention in passing

So despite your claim that it's 'very easy to do', in the very next paragraph you are basically saying that you need to be around people who 'mention in passing' obscure details of email server configuration, otherwise it will 'make a lot of difference'? I mean it seems you disagree with me at first, but then in the rest of your post you seem to be making my point for me, so...