We all started with pencils and paper ;)

Unfortunately, and awful lot of programmers these days don't.

They build complicated systems by gluing (and tacking and forcing-fitting), a bunch of modules they never look inside and wouldn't (attempt to) understand if they did.

And when they need slight variations of functionality, they seek out yet another module to wrap around the first to bend its output to what they want. The result is they end up with slow, heavy, OO-tagliatelle behemoths that sap 10 times as many cycles to do anything than is necessary.

Then they are forced to seek to mitigation for that, by wrapping it in yet another layer to distribute it across a cluster because single boxes are too slow.

{sigh} My gray hairs are showing again :)