Self-infanticide

Gödel did something very clever. He found a solution of Einstein’s field equations in which the world lines circled back on themselves. This means that if you were traveling along a world line you would eventually encounter yourself as a baby. Suppose you kill yourself as a baby. Would you still be alive? It would be disturbing if you were both alive and dead. Unlike quantum mechanics, Einstein’s theory does not address ambiguity explicitly. The great challenge of modern physics is to unite the general theory of relativity with quantum mechanics. This has not yet been done.

The Uncertainty Principle: When one plus one is measurably not two

Experiments were performed in the early twentieth century that
indicated that small objects like electrons were particles if certain experiments were done, but were waves if other experiments were done. The statement, “This electron is a particle.” can be both true and false. This is a failure of logic of the kind that Kurt Gödel was concerned with. However, this example goes beyond the parlor games of mathematicians. This failure of logic can be measured and occurs in nature. As we will see, this logical failure, is crucial for the formation of life.

Newton’s Cannonball

Today we are going to talk about the thought experiment, Newton’s Cannonball. Isaac Newton came up with this thought experiment in order to demonstrate that the mechanism that causes bodies to fall on Earth is the same mechanism that cause the planets to orbit the Sun. This seems obvious to us now, after the fact, but it was certainly not obvious at the time. Galileo, who died on the day that Newton was born, thought that the two mechanisms were entirely different. He called these mechanisms “gravity.”

Eddies in the Stream

What is there about matter, energy, and information that leads to the spontaneous creation and continued existence of complex systems of which we humans are an example? Does life need to composed of carbon atoms as we are? Can life be made out of other types of molecules? Or to take the questioning deeper, does life require chemistry at all for its existence? Can life exist in a nuclear reactor or in a neutron star or in very cold solids near absolute zero or in the memory units of a computer? And what are these things we call consciousness and awareness? And what in the world is a soul?