Very interesting indeed and I had some glimpse of that in my dad, who all his life worked for only one company. And especially as I got older and interested in

Very interesting indeed and I had some glimpse of that in my dad, who all his life worked for only one company. And especially as I got older and interested in computers he started talking about some work stuff sometimes. His first programming language at work was 360 assembler. For the uninitiated/too young to remember: https://en.wikipedia.org/wiki/IBM_System/360 https://en.wikipedia.org/wiki/IBM_System/360. When I started working at the same company for my first job and I had to log into 'the host' - meaning the IBM mainframe they had (I believe by that time a Z series https://en.wikipedia.org/wiki/IBM_Z https://en.wikipedia.org/wiki/IBM_Z) I noticed how the custom login screen for their entire system had actually been written by my dad. So all this just as a little context. But when I was talking about SQL like 15+ years ago he would always tell me that sure that's nice and all, but all those joins. They're painfully slow. Why would you do that? They had a table that had exactly all the information that they needed to have and they accessed it via a key. Fast and easy. Need a different view of the data? Make a new table that's organized the way you need it. Done and fast. Ring a bell? (NoSQL :)) I also started playing with Linux and system administration and obviously virtualization (vmware at the time, qemu stuff etc.). So I go talk to my dad about it and how I love the concept and how it does X and Y and Z cool thing. Yeah well, for him that was really old stuff, coz they had that on their mainframe since like forever (now called z/VM, then called VM/370 - in 1972). We had to learn and use Java at university, which my dad always made fun of. Especially with articles like "The state of Java application middleware" and such that I was looking at. All that new fangled stuff, pah! He had been working with IBM CICS as the middleware for forever. Initial release of CICS July 8 1969, latest release June 12, 2020. (https://en.wikipedia.org/wiki/CICS https://en.wikipedia.org/wiki/CICS) I get it. I say the same thing(s) about some of the new fangled stuff I have to work with nowadays. With the kids. Some of it is great. Other things I'm just asked myself why the wheel had to be re-invented just to come back to square one. Like NoSQL databases that add features you'd expect from relational databases.