[Oyk]

For your info, 5G technology is premised on 'old' school knowledge. Most of what was taught 10 or even 20 years ago applied very much to this technology.

Everything is built one on top of the other.

But you seem to be telling me that if you knew how to work on a HP 3000 mainframe using Fortran and Cobol, you are good for today's 5G.

Stop talking nonsense.

PS:  Same goes for medicine, fyi.  A doctor who graduated 30 years ago cannot be very good if he does not continue to update his knowledge based on new discoveries.  Don't come and tell me that current medicine is based on old medicine...