The growth of technology is such that it is not possible today for a nuclear physicist to switch into medical physics without training. The field is now much more technical. More training is needed to do the job.

I am not unhappy that my contribution was not recognized. I am sure it helped my career.

I would not encourage everyone to take up this profession. Not everyone is suited for any particular field.

It is likely that we need more radiation to improve our longevity.

I would suggest, merely as a metaphor here, but also as the basis for a scientific program to investigate the computational capacity of the universe, that this is also a reasonable explanation for why the universe is complex.

One could write a history of science in reverse by assembling the solemn pronouncements of highest authority about what could not be done and could never happen.

I love it when real science finds a home in a fictional setting, where you take some real core idea of science and weave it through a fictional narrative in order to bring it to life, the way stories can. That's my favorite thing.

Right now we have a closure rate between discovery and exploitation of four to six months. We need to be more in the realm of seven to 10 days. That is an enormous challenge.