No. The share price is the latest price someone purchased that share for. It's just a metric. Someone did literally spend $700 and gave it to someone else in exchange for one "share". Now, you may call a "share" just a piece of air--but it is something that has value. The money for it, however, comes out of my pocket and is definitely not thin air.
Could someone elaborate on the use-cases that rethinkdb tries to solve?
As a DB newb, what are the advantages of rethinkdb vs. other NoSQL DBs like Mongo. Why and where would I use rethink instead of an SQL DB like postgres?