Background Analog: Introduction of Landmark Graphics at the EAEG, Oslo in 1983

GECO introduced Charisma

Landmark had schematic drawings of the Landmark I, II, and III

GSI was talking about their system in private discussions

it appeared this convention accelerated Western Geophysical's introduction of Crystal
as well as the efforts of Prakla and CGG

I had an introductory conversation with
John Denham, Chief Geophysicist at BHP Petroleum, challenging him with
"We will have a working system at the SEG in Las Vegas.
You Bring a tape. We'll load it. And if it works you buy a system!"

and I was just developing an approach to managers, claiming
"We are going to replace your fifteen cent colored pencils with a $300,000 workstation!"