Quote:
Originally Posted by aerohead
The transistor was designed from theory.
Theory allows us to design aircraft and rocket ships inside a computer,within 1% accuracy.
All skyscapers are designed from theory.
All nuclear submarines are designed from theory.
The integrated circuit was designed from theory.
The upcoming Corona Virus vaccine will be derived from theory.
Theory allows capitalism to thrive.
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Wouldn't normally chip in my 2 cents worth, but I think you're missing a few things from your post.
Nothing is designed from theory, things are DEVELOPED from theory. Design, production and testing, then going back to the design based on the physical testing results. It's an iterative process!
Otherwise we would never progress.
Theory AND development. Theory on it's own is
useless. 
Testing on it's own is also useless, if you don't know what to do with the results - you combine them with theory for an overall picture of what's actually happening.
Don't forget about all the failures with various buildings, nuclear reactors, transistors etc!
because we only had a theory to go on when they were being designed.