One problem, I see, is connected to the definition of time versus how we measure time. We measure time with clocks which use cyclic action. The second hand on the clock, reaches 12, once a minute. On the other hand, time does not move in cycles, but rather time moves to the future, never repeating, never cycling, and never going back to the beginning. The action of the clock does not parallel the nature of time, sine it cycles but time does not. The clock is manmade and does not parallel time. This will create disconnect.

One well know phenomena that cycles is energy; sine waves. We are using the cyclic nature of energy to describe and measure time, even though energy has wavelength (distance) and frequency (time), while time only has time. There is a conceptual disconnect. The numbers may work out, but the disconnect between the two phenomena, will have an impact on how the mind equates the clock and time.

As an analogy, I can measure temperature with a hydrometer; relative humidity, if I keep pressure constant. At any given temperature and pressure, so much water vapor will be in equilibrium with its liquid. In this detached thermometer, I am using the evaporation of water, at constant pressure, to measure temperature. This method will give good results, based on humidity charts. However, conceptually, the brain will begin to theorize how temperature is somehow connected to evaporation.The cause and effect can become backwards or upside down, if we use the tool's action to describe temperature.

In the case of time, since clocks measure time with a cycle, similar to energy, we will attempt to explain time in terms of (distance-time); space-time, speed of light, inertial speed, wavelength/frequency of energy. We are explaining what happens to the clock, not time. Time does not use distance. The idea of integrated space-time stems from the cyclic clock, since time is never fully separated from distance.

Let us infer a better tool that more closely parallels time. The flow of time is far closer to the concept of entropy, than the cyclic nature of energy. Both time and entropy naturally increase; 2nd law, as we move to the future. Neither time or entropy will spontaneously cycle backwards.

In chemistry, entropy is a state function, meaning a given state of matter will have a given level of entropy. The original definition of entropy, was not randomness, but was based on states. Random appears to help the disconnect. For example, water at 25C has an entropy value of 6.6177 J ˣ mol-1 ˣ K-1. The magnitude of entropy is not random, but has exact value; the state is an average for all the units.

An entropy based clock might be a human life, such as in the twin paradox. Entropy increase implies forward progressing changes of state, with each state having more entropy than the last. A slowing of time will simply slow the rate of entropy. A slowing of entropy will mean the human clock will take longer to reach each successive state; age slower.

If we use cyclic clocks, instead of entropy clocks, we will explain this with distance and time; curved space-time and the movement of light, wavelength changes, etc., since these are all connected to the units of energy based clocks, which do not accurately portray the nature of time.

Relative to GR, when gravity acts upon matter, it causes the entropy of the matter to decrease. Gravitation pressure is being applied. For example, liquid water has lower entropy than water vapor. The pressure increase created by gravity, will turn water vapor into liquid, lowering the entropy of the water. The result is a lowered entropy platform. This lower entropy floor sets a potential, that lowers the rate of entropy gain. Our human entropy clock ages slower. Entropy and time will still increase, but they will do so slower.

Special Relativity only works, in reality, if we have mass in motion. This is why Einstein defined three parameters in SR; mass, distance and time. If you use just distance and time, such as in the imagination; fly to the moon near C, nothing tangible will happen to reality. It may happen on paper, via math, but this a mental exercise will not impact your human entropy clock. Your mass needs to move since entropy is connected to states of matter.

The changes in relativistic mass, is altering the platform for entropy. Velocity will lower the platform for entropy, placing a drag on entropy. We don't go back in time, but will move slower to the future. Twin ages slower.

The two different approaches simply depend on whether you use an energy or entropy clock to describe time. It is much simpler with the entropy clock since you don't require a complicated translation process that leads to confusion, such as how pressure can alter temperate using an hydrometer thermometer.