Stop in for a cup of coffee

Ddaddy can you just tell him... If you want to accomplish this, then these are the materials that would be compatible and in order to do it, this needs to be researched. Might I suggest that X, Y and Z are the people that could research the method/availability or whatever?
Nope, it’s not that simple. What he is trying to do requires technology that doesn’t exist. For us to even begin to try to solve the problem requires an investment of over a year and at least a thousand hours of time plus a million dollars of investment...and that just to answer the question of “Is it possible?”

Had he presented the problem and asked for an analysis, we would have put together a comprehensive evaluation that tells him what is possible and what it takes to find out. Instead we are engaged in a banter of stupidity telling him no every time he opens his mouth. He won’t take the time for a full discussion and just wants to do it in limited texts and emails.

Beyond stupid.