[b]Leonard Susskind
There is a philosophy that says that if something is unobservable – unobservable in principle – it is not part of science. If there is no way to falsify or confirm a hypothesis, it belongs to the realm of metaphysical speculation, together with astrology and spiritualism. By that standard, most of the universe has no scientific reality – it’s just a figment of our imaginations.[/b]
In other words, way, way, way out on the limb.
There is so much to groak; So little to groak from.
Hmm…
"P. W. Joyce defined the word as ‘to look on silently—like a dog—at people while they are eating, hoping to be asked to eat a bit.’”
Dick Feynman was a genius of visualization: he made a mental picture of anything he was working on. While others were writing blackboard-filling formulas to express the laws of elementary particles, he would just draw a picture and figure out the answer.
How about that, Mr. Abstractionist?
We often say that the earth is a sphere, but to be precise, the term sphere refers only to the surface. The correct mathematical term for the solid earth is a ball.
Noted.
I would guess that there are limits to what we can understand. But old people always think there are limits to what we can understand. It’s the young people who push past those limits.
Maybe, but then they bump into someone like me.
…the three-dimensional world of ordinary experience—the universe filled with galaxies, stars, planets, houses, boulders, and people—is a hologram, an image of reality coded on a distant two-dimensional surface. This new law of physics, known as the Holographic Principle, asserts that everything inside a region of space can be described by bits of information restricted to the boundary.
Now all we need is the explanation for why that is important to know.