If you look at the sun, the center of gravity (bottom of space-time well) is where the nuclear fusion occurs; with the gamma frequencies, related to the fusion among the fastest EMR frequencies. Time ticks are speeding up, in terms of matter/energy/fusion/frequency, but time is slowing in terms of space-time. Space-time is a mathematical construct, while the frequency of energy is a tangible thing, you can save in a beaker. If we extrapolate frequency, from the sun;s core, to the neutron star, to the black hole, space-time may contract toward zero, but frequency would be getting faster and faster. This is due to work and energy conservation; tangible things. The way I model tangible time; frequency, is to add another element of time to space-time; space-time-time, with this also defining acceleration. Gravity is an acceleration and force due to space-time-time, impacting both space-time and the frequency of matter/energy, by generating pressure. Since a blackhole can form from finite mass, finite mass can't generate infinite pressure. This means that although space-time may mathematically contract to zero, space-time-time can never reach infinite acceleration, because the two time elements are going in opposite directions and washing each other out. I am adding a tangible expression of time to the analysis. This may be taboo if the model expects only abstract time and does not allow a tangible clock that will be the same in all references.