Note 1 — Chapter XI

At the risk of repetition I must make the following clear: Time-traveling only consumes Time in the sense of the perception of human consciousness that the trip has duration. The vehicles thus moved "fast" or "slow" according to the rate of change which the controls of the cage gave its inherent vibration factors. Too sudden a change could not be withstood by the human passengers. Hence the trips—for them—had duration.

Migul took Mary and me from 1935 to 1777. The flight seems perhaps half an hour. At a greater rate of vibration change, we sped to 2930; and back and forth from 2930 to 1935. At each successive arrival in 1935, Migul so skilfully calculated the stop that it occurred upon the same night, at the same hour, and only a minute or so later. And in 2930 he achieved the same result. To one who might stand at either end and watch the cage depart, the round trip was made in three or four minutes at most.