I should add my idea here as it has not received a mention and is relevant to the discussion. The caveat is that it has the support of just one......me.

The crossing exists not in postion but in time. Now before I get shot down it is my theory and unique after six months reading and observation. This from stars in filaments of density should have a relationship with time.

In ten years time we will all laugh about this and look forward to the next prediction. In the meantime 01101001 can I at least make the list?