I was directly responding to "In my opinion no lasting and great product can be built that way." Facebook, Twitter, and certainly Google have been proven to be long lasting. Google is ubiquitous at this point!
Android for example is good enough, but far from Great IMO. Granted, this is all subjective but an overhead sprinkler whose sensor is a part that melts/deforms with heat is timeless solution that just works (1879 https://www.google.com/patents/US218564) . An electronic sensor could work, but has far more failure modes. Now compare this with say Facebook whose design regularly undergoes significant revision.
