Quote (Blah58 @ Dec 23 2015 12:23am)
In the movie, replacement female yoda asked han who Rey really is and he smirked then the scene cut away, implying han knows something. If he didn't he would have said he didn't know in the scene. Plus look at how quickly he offered her a job.
I think the best explination is she is Luke's daughter. Kylo turned dark causing luke to hide his very young daughter from everyone. Why didn't he just take her with him? Many possible reasons, could be that would be too easy to find together, similar to why Luke and Leia had to be separated. Or maybe Luke thought his time growing up the way he did was important to his training, considering pure training from birth lead to Kylo, and he wanted his daughter to go through the same thing he did.
But if he knew then why did he basically not give a fuck when she was captured?