1.   Amateur investment crazes have long been a staple of the markets.

2.   An investment craze has developed focusing on the stocks of companies with even the remotest claim to having a solution to the problem.

3.   An investment craze has developed that is focusing on the stocks of companies with even the remotest claim to having a solution to the problem.

4.   Thus began an investment craze surrounding the stocks of companies that have even the remotest claim of offering a solution to the problem.