I'm suddenly reminded of the episode "When the Bough Breaks" from Start Trek: TNG. Long-lost hyperadvanced planet-society finds itself infertile and unable to sustain its own population, steals kids from Enterprise to teach them how to be a generation of little Mozards and Rembrandts; Enterprise rescues kids and in the process figures out that said hyperadvanced society - having focused entirely on arts and humanities - forgot even the most basic understanding of the technologies they relied upon and were now falling victim to radiation poisoning brought on by ozone depletion and the power plant they were using to power their tech. Scaling down the power plant's energy production and reseeding the ozone layer implicitly fixes the fertility issues, at the cost of the long-lost planet now no longer being long-lost and the additional cost of the planet's inhabitants pledging to learn more about their technologies instead of blindly depending on them.

Moral of the story: make sure understanding of relied-upon technologies is prioritized, lest they bite you in the rear later.