Strata was published in 1981. Two years earlier, the Hitch-hiker's Guide to the Galaxy first aired on BBC radio. The radio series was novelized and committed to LP record in 1980. A theme of h2g2 is the planet Magrathea, where the local Company built custom-made planets, including a planetary outer skin to disguise the fact that the utterly insignificant little blue-green planet Earth was in fact a super-computer designed to work out the Question to the Answer which is 42. For more: go here
What Slartibartfast could have done with a Strata-machine, as regards fjords and other crinkly bits...
Cross-fertilization of ideas, between Terry Pratchett and Douglas Adams?