@jc@djb@nixCraft ideally yes, but not all PhD thesis do contribute any actual "new knowledge" to create any such dent. In fact, arguably many Master's thesis out there contribute just as much or even more than some PhD thesis.
@jc Back when I did helpdesk for a product that a lot of medical doctors used, this would've been fun for them to comprehend, instead of assuming the person they call doesn't have high enough IQ to tie their shoelaces.
My Dad was of the opinion that books were the way to knowledge and used to always say a very similar thing to me, namely: "The more you read the more you realise how little you know." I'm 65 and I'm still at that point where I most definitely "realise how little I know".
@jc @nixCraft which gives me an excuse to repost this from Simon Wardley. Started as a joke and then it just took off
https://blog.gardeviance.org/2008/04/three-stages-of-expertise.html