as a very distant topic to my college education, banks, how they operate, bonds and mortgage, i saw The Big Short yesterday. based on a true story, it turns out that the mortgage crisis that struck the us out of nowhere was not a sudden meteorite observed in skies. the ambitious duo from their parents garage ended up learning about this huge system crack started to ac on it while getting help from an ex-very accomplished-banker who worked for Bear Stanley, one the biggest investment banks which ended up filing for bankruptcy. the point was this guy, normally a recluse and suspects that intelligence always watchs him, was the neighbor of that duo where they met and became friends while walking their dogs. again provided advantage from the parents. Lewis Ranieri who started the system of getting profit from mortgages and in time it turns out in a way that even though the buyer has no income whatsoever the bond was approved meaning maybe the level of the bond is BBB or C or D. th...