It is the business of the scientist to accumulate knowledge about the universe and all that is in it, and to find, if he is able, common factors which underlie and account for the facts that he knows.

Imagine all the different account inquiries you could create with the four tags in the above transaction — only a tax collector could find creativity in this.

To stack the odds in our favor we therefore need to take into account each one of the three methodologies and hopefully find them to be congruent, meaning that they all point in the same direction.