Could you please define objectivity, set it in context, and state limits? I have

Could you please define objectivity, set it in context, and state limits? I have my own formulation as influenced by your thinking, but would like an independent analysis to compare the two.

(prompted by a friend sending me this: https://medium.com/@emiliorocca/objectivity-intersubjectivity-space-and-blockchain-162086fa57d1#.omkz8z85u)