Twin Paradox
The Twin Paradox was a magic trick, invented to entertain the bloody people.
1. Each twin is sending signals every year which is indicated by his own clock.
2. The travelling twin will turn around at half time.
Nobody can reach the speed of the waves sent by himself.
Nobody can avoid to receive the signal waves.
Hence no signal could ever be lost.
By logic the twin paradox is symmetric and not paradox.
Cheers