In the old days when I had to deal with this (sending EBCDIC encoded data to companies using mainframes), I did not have to deal with the conversion tables, as OpenVMS had system subroutines to do this.
Sending EBCDIC data on half inch tapes.... those were the days...
False comparison. If there were a hundred idiots standing around the crosswalk making noise with their kazoos, then the signal would pretty much be useless for the blind, and could be turned off. That is how quite a number of discussion boards are today.
I have not used the imdb message boards, but a quick sample of comments there unfortunately confirmed that most of it is negative noise. Little of value will be lost.
...on how you rate the innovations from the various eras.
The development from mass starvation to beinga ble to feed the polulation is obviously more important to most people than the iPhone.
So the question cannot really be answered, as each era haas had its innovations which were really important at the time, while may seem trivial now.
It is also important to note that most innovations depend on previous innovations, so you rate one innovation without knowing what it is based on.