The house analogy is wrong, we are not talking about using different tech for different apps but different tech for different parts of the system. Therefore, t

The house analogy is wrong, we are not talking about using different tech for different apps but different tech for different parts of the system. Therefore, the house analogy would be using different materials for the floors, for the roof, for plumbing and electricity. Then you will notice that different experts install all these parts. The plumber wouldn't do the electricity. It's not that it's impossible to know plumbing and electrical systems at the same time but it's much easier when you are plumber or electrician instead of trying to be a jack of all trades.