Knowledge is an infinite and deep reservoir present for all of us to experience. Scientia (Latin term for Knowledge) is a moving target - the body of knowledge itself. Scientists (which we can all claim to be) engage in activities to acquire knowledge. The highest award (title) we give in the reservoir of knowledge is PhD (Latin abbreviation for Philosophiae Doctor) of Doctor of Philosophy in ........ (you name the field).
How appropriate that scientists are really just philosophers swimming in their ocean of knowledge. Waves of information Piling Higher and Deeper (PHD) and Patiently Hoping for a Degree (PHD).
The 2011 Survey of Earned Doctorates estimates 49,000 USA degrees from 412 granting institutions. The twentieth century show explosive growth in doctorates awarded.
Does this mean we (or they) know more? ..... or that there are more, that know more? ....... or that the more they know, the less is known?
How deep is the reservoir?