The Age Of The Earth Matters

Contra Marco Rubio, Alex Knapp argues that "the age of the universe has a lot to do with how our economy is going to grow." For example:

[S]cientists currently believe that the Earth is about 4.54 billion years old because radioactive substances decay at generally stable rates.  Accordingly, by observing how much of a radioactive substance has decayed, scientists are able to determine how old that substance is. However, if the Earth is only 9,000 years old, then radioactive decay rates are unstable and subject to rapid acceleration under completely unknown circumstances. This poses an enormous danger to the country’s nuclear power plants, which could undergo an unanticipated meltdown at any time due to currently unpredictable circumstances. Likewise, accelerated decay could lead to the detonation of our nuclear weapons, and cause injuries and death to people undergoing radioactive treatments in hospitals. Any of these circumstances would obviously have a large economic impact.