Usually when sitting around drinking with my friends we end up talking about things like startup cultures, robotics, home automation, guiter-effects-pedal hacki

Usually when sitting around drinking with my friends we end up talking about things like startup cultures, robotics, home automation, guiter-effects-pedal hacking, economies/investments, business operations, business ideas, religions, etc. FWIW, my friends cover a fairly wide variety of demographics, they are not all geeks or startup people, but they all have the ability to discuss things they are actively involved in in one way or another.