Though familiar with the technicalities from a course of novel reading, he had never before attempted to "follow" anyone, and it appeared to him at once that, in actual practice, the proceeding was fraught with difficulties.
He often underestimates how difficult different tasks actually can be.
mnli hypothesis: He often underestimates how difficult different tasks actually can be. premise: Though familiar with the technicalities from a course of novel reading, he had never before attempted to "follow" anyone, and it appeared to him at once that, in actual practice, the proceeding was fraught with difficulties.