Inventor of the Domain Name System (DNS).

[petulia3478]

Links:
https://en.wikipedia.org/wiki/Paul_Mockapetris
https://www.internethalloffame.org/official-biography-paul-mockapetris

Paul Mockapetris, plainly put, another guy who facilitated the expansion internet, his work plays a mammoth role in the modern Internet.

"An Internet Pioneer!"

Paul Mockapetris

Quote: - source - https://www.wired.com/2012/07/paul-mockapetris-dns/

"If you send an email, you expect the system to figure out how to get it to where it's going – whichever one of the 200 million domains that might be – and by and large, it all works."

The wired.com article was in 2012, the 200 millions, is more like 400 million now.