Bergson never accepted Einstein's statement, and Einstein himself was unsettled by the fact that physics lacked a proper description of the concept of now, though he himself was not sure of how to fold the concept in. Hilbert as well, was made uncomfortable by the infinities associated with his mathematics, stating that physics should never incorporate actual infinities.

In 1922, Albert Einstein, met up with a philosopher, Henri Bergson, where they debated about time, wherein Einstein stated that: "There is no such thing as the time of the philosopher."