Computer thought certificate illegal twice in requiring regulation (10,12)
I believe the answer is:
artificial intelligence
'regulation' is the definition.
The definition and answer can be both related to thinking as well as being singular nouns.
Maybe there's an association between them I don't understand?
'computer thought certificate illegal twice in' is the wordplay.
I cannot quite see how this works, but
'in' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
'requiring' is the link.
Can you help me to learn more?
(Other definitions for artificial intelligence that I've seen before include "Unnatural sense" , "Robot's brainpower" .)