First off, great ep, lots of great stuff. But it's pretty easy to be blinded by the difference in scope or scale from what you're used to vs what someone else is used to.
Running "all" your unit tests in 500ms is a great theory, until there's 80,000 of them and they take two-to-three hours to run parallelized 10 ways. Some stuff is just big.
That's not to say they couldn't be made much faster, but in brownfields, patterns and decisions made on .net 1.2 can cast a hell of a long shadow.
Secondly, Jamie talked about brown/green coming from architecture but said most of the time new architects would come in and bulldoze the place to build anew.
Once again, true for your house or the local pub, but scale it up a bit to your local mall, shopping centre, stadium or airport and you'll find *bits* of them are 30+ years old and still totally functional, and now almost impossible to remove without a full bulldozing.
Here's my local shopping centre in 1970 and 2020. Notice the natty office tower standing proud in 1970 is now inside the car park.
There's a whole world out there of stuff that iceberg-like is hiding beneath the surface, and the difference in scale can be pretty mind-blowing.
Keep up the good work, looking forward to more banter :)
Principal developer at Workday in Brisbane