Comments by "T J" (@TJ-hs1qm) on "How Gravity Actually Works" video.

  1. All objects travel with the constant speed of light c through spacetime (everywhere at any time). The presence of a mass slows down time; i.e., the time component of the speed vector tends to get smaller near a heavy object. The effect is known as time dilation, and to compensate for that, the space component has to increase so that the overall length of the spacetime vector remains constant at c. The smaller the component of the spacetime vector in the time dimension, the bigger the component in the space dimension, which 'leads' the object towards the center of the mass. Gravity is a consequence of time dilation. One would think that it would take the object until the very center of the mass to experience an infinite amount of time dilation (component in the time dimension reaches zero, spatial component at the maximal possible value which is the speed of light). However, this happens already at the event horizon, so way before the actual center of the mass. What happens then between the event horizon and the center? Do we experience negative dilation and speed?
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  2.  @narfwhals7843  hence the name Zero G
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