The doppler shift ratio is far more apparent from the STD for determining relative velocity between Bob and Alice than in the method I showed in pt 3. It depends on Bob and Alice televising their clock readout and daily lives to the universe. (Relativity likes to use the telescope method but that's completely unrealistic.) They both receive each others signals and are able to deduce their relative velocity from these. For example, at .6c separating, they will see each others relative daily motion and time rate at .5c through time. At .6c approaching, they will see that time rate and their televised movements at 2c through time. This is where everyone starts screaming that nothing can go at 2c. Again this is due to the common problem of equating depiction, perspective and reality. Unfortunately, this is a very long discussion and I don't have the time right now to finish.
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