how can black holes bend time if time bending is impossible ?
Gravitational time dilation is well established by experimental evidence - e.g., Pound-Rebka-Snider experiment.
The "bending" of spacetime is possible and happens around all sources of mass and energy. The result of this bending is gravitation, along with other effect such as time dilation.
if time bending is impossible, then black holes cannot do it
if black holes can do it, then it isn't impossible
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