I've found that a lot of big data solutions in use by companies are only in use because business requirements were "we want all the data and we'll figure out wh

I've found that a lot of big data solutions in use by companies are only in use because business requirements were "we want all the data and we'll figure out what to do with it later", but then it turns out only a fraction of the data is used or only in a heavily aggregated form. That makes sense, of course, nobody is going to manually go through a few terabytes worth of records manually.