Is the Twin Paradox More Confusing When Moving in One Direction?

[JesseM]

Finally we agree on something. The twins age the same. All we have to agree on now is by how much they age? 6 years or 10 years?

If each ship starts their timer when the other ship is 4 ly away in their own rest frame, and each ship sees the other approaching at 0.8c, then each ship ages 5 years between starting their own timer and meeting the other ship. However, since they define simultaneity differently, each ship would say that the other one started their timer earlier then they did, so that by the time they themselves started their own timer, the other ship's timer had already been running for 2 years. Thus each ship says that in the interval between starting their own timer and meeting the other ship, the other ship has only aged 3 more years, ensuring that both ships agree their timer has run a total of 5 years between the time it started and the time the two ships met.

 

[Blazah]

The twin paradox is very confusing, and even after reading the explanation, I still get questions.

http://www.sysmatrix.net/~kavs/kjs/addend4.html" offers stunning clarity IMHO.