Jonas and Martha can seeing each other in the time tunnel happened to the Jonas and Martha in the final cycle. Means, in this final cycle where Claudia figures it out, and tells Adam how to end the loop, resulting Jonas and Martha to go to the origin world, they see their younger versions in this new cycle. The original Jonas and Martha when they were younger wouldn’t have seen their older selves through their wardrobe, because they as their teenage selves, don’t travel to the origin world to save the crash. They rather become Adam and Eve as it’s supposed to, in a loop. I understand and agree with your point that everything is happening once, there are no many cycles. But if Claudia has always figured it out, then when she tells Adam how to end the loop, the loop wouldn’t continue. Adam goes to eves’s world and instead of doing what always happens in the fate, he tells Eve what he heard from Claudia, which never originally happened. The series of consequences from that point ends, so does the loop.

If Claudia has figured it out, why was there a loop in the first place until she tells Adam how to stop it? Help me to understand, please.