When I started out self-teaching programming on Windows with Visual Studio, in high school long before university, my greatest fear is that I might one day have

When I started out self-teaching programming on Windows with Visual Studio, in high school long before university, my greatest fear is that I might one day have to understand COM, OLE, and ActiveX. Luckily some friends had already taken an interest in Linux and BSD, radicalizing me in that direction instead. I made a whole career writing backend services for datacenters and still couldn't tell you the first thing about OLE.