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> I watch them work, and it doesn't take that long or seem so difficult. Someone is making pots of money off of it. One could say the same about software devel

• WalterBright 5y ago
  Not really. I've never had plumber training, and yet figured out how to do it by watching them. Writing software isn't learned that way. I've also never met an electrician who knew what inductive coupling was. They just followed the building code. They had no idea why. The roofers didn't know what galvanic corrosion was, either, and I had them pull all the nails out that were incompatible with the flashing material and redo it. (I talked to the contractor in advance about this, and he ignored me and use the wrong nails anyway.)