hijack from Einstein Light Clock Conundrum

[Logicandreason]

The "Light Clock" has nothing to do with Physics.  Because such a device is a physical impossibility. So you have an imaginary device that can't possibly function in reality, then you expect to be able to do Math calculations on its performance? That's equivalent to calculating how many tooth fairies would be required to lift a block of Moon Cheese.

[Mordred]

there is nothing incorrect regarding the light clock used to describe time dilation on signal rate change. When you get right down to it gravitational redshift is a direct example.

[swansont]

We do thought problems that are physically impossible all the time. Frictionless surfaces, reversible processes.

This isn’t a serious objection.

[Janus]

15 hours ago, Logicandreason said:

The "Light Clock" has nothing to do with Physics.  Because such a device is a physical impossibility. So you have an imaginary device that can't possibly function in reality, then you expect to be able to do Math calculations on its performance? That's equivalent to calculating how many tooth fairies would be required to lift a block of Moon Cheese.

Just out of curiosity, exactly what about the light clock do find as being impossible?