What does "to what extent" mean?
https://idioms.thefreedictionary.com/to all intents and purposes
Definition of 'to the extent of/that/to such an extent that(etc)'. to the extent of/that/to such an extent that (etc) You use expressions such as to the extent of, to the extent that, or to such an extent that in order to emphasize that a situation has reached a difficult, dangerous, or surprising stage.
DA: 29 PA: 30 MOZ Rank: 86