User blog comment:Thailog/Ep. 206 "Bloodlines" discussion/@comment-5141417-20120605114407/@comment-3094698-20120605213726

think about time travel from the perspective of doctor who. on that show time is getting changed basicly every episode (i think the earth has blown up on 4 seperate occasions so far), the doctor and anyone with him retain their old memories despite the change to the time stream, so because bart and neutron were directly involved in altering the time stream (bart going back in time and neutron giving him the means to cure him) they will both retain their original memories despite the changes to the time stream.

honestly this bit of time travel is nothing having gone through some of the crazyness ive seen on doctor who