I was having a debate with a player today as to whether the Adeptus Mechanicus consider invention - as in creating new technology, or a new implementation of knowledge as a "sin" or heresy. My assumption was that they had ancient tried and tested historic patterns of tech (including fragments of the near-mythical STC) which could be built from, implemented, possibly modified or altered within accepted degrees of toleraance, but that coming up with "new" ideas was frowned upon at best and considered heretical at worst.
Am I wrong in this assumption? Did I assume or is this written or implied in the source material?