While on the topic of lore questions, does Adeptus Mechanicus have a consistent policy on technological innovation and scientific culture? I read some scattered novels and short stories, and it seems like it varies a lot from case to case and subject to the needs of the plot whether basic stuff like the scientific method is considered permissible or even conceivable, or whether it's rote-repetition or rediscovery of ancient knowledge with no practical understanding of the underlying principles, or whether it's full-on mad scientist shenanigans powered by advanced research programs and highly knowledgeable savants.
Also, are there any recognizable relics or artifacts or references to present day human civilization that have survived into the far future? Something like in Dune, where a Van Gogh painting survives into the far future.