Above you have stated that you “trust Yogananda that Kriya burns karma.” So why is it you do not trust Yogananda when he stated this in the Autbiography of a Yogi (chapter 16 - Outwitting the Stars). And if you do trust him, wouldn’t you also accept the statements he made below about the Yugas and Sri Yukteswar’s ability to “ separate errors and interpolations of scholars from the truths as originally expressed by the prophets.”?
My trust in topics related to metaphysical science is 100%
My trust in topics related to physical science is subject to God-given discrimination and logic. I would sin of omission if I did not apply such God-given faculties.
The great masters themselves, although many of them were avatars, had to accept limitations due to the very fact that they had to incarnate in a gross body.
The above being said, my trust in science is not 100% either and is subject to discrimination and logic.
Bottom line, my judgment about the model of the yugas is presently neutral. There is no evidence of a binary system involving the sun, the search has eluded even the efforts of the binary institute, so the whole model would not be correct. On the other side, the tools of astronomy are becoming more and more refined and accurate, so a celestial object gravitationally engaged with the sun may be discovered.
I apologize for not being 100% trustful on that, but I feel that Sri yukteswar would appreciate my reasoned objections, I really wish he could appear to me in vision explaining where I am wrong, at the same time punishing me with proper epithets.