One might think this means that imaginary numbers are just a mathematical game having nothing to do with the real world. From the viewpoint of positivist philosophy, however, one cannot determine what is real. All one can do is find which mathematical models describe the universe we live in. It turns out that a mathematical model involving imaginary time predicts not only effects we have already observed but also effects we have not been able to measure yet nevertheless believe in for other reasons. So what is real and what is imaginary? Is the distinction just in our minds?

When I hear of Schrödinger's cat, I reach for my pistol.

Because there is a law such as gravity, the Universe can and will create itself from nothing.

Maybe I don't have the most common kind of motor neuron disease, which usually kills in two or three years.

Many people do not like the idea that time has a beginning, probably because it smacks of divine intervention. (The Catholic Church, on the other hand, seized on the big bang model and in 1951 officially pronounced it to be in accordance with the Bible.

Doing a job RIGHT the first time gets the job done. Doing the job WRONG fourteen times gives you job security.

I believe in universal health care. And I am not afraid to say so.