Moreover, the theory has many surprising and counterintuitive consequences. These results lead to some highly counterintuitive conclusions. This counterintuitive fact became known as Skolem's paradox. For a similar example of counterintuitive infinite expectations, see the St. Petersburg paradox. Special relativity has many counterintuitive and experimentally verified implications. These simple but counterintuitive puzzles are used as a standard example in teaching probability theory. This can sometimes cause apparently counterintuitive results. Yet until the 1950s there was no explanation for this highly unusual and counterintuitive phenomenon. This remarkable result shows how similitude in nature is often counterintuitive. The other classes have foundations that may at first seem similarly counterintuitive. String girdling Earth is a mathematical puzzle with a counterintuitive solution. How the universe can be like this is rather counterintuitive. Another optional section called RANGES specifies double-inequalities, in a somewhat counterintuitive way not described here. Sensor size affects DOF in counterintuitive ways. The concept of passive management is counterintuitive to many investors.