Quotes About Existence

Had Earth been much closer to the Sun, the oceans would have evaporated. Had Earth been much farther away, the oceans would have frozen. In either case, life as we know it would not have evolved.

We do not simply live in the universe. The universe lives within us.

Since four coordinates are needed, we know that we live in a four-dimensional universe

And yes, every one of our body's atoms is traceable to the big bang and to the thermonuclear furnaces within high-mass stars that exploded more than five billion years ago. We are stardust brought to life, then empowered by the universe to figure itself out—and we have only just begun.

There are people, who walk around every day, asserting that we are alone in this cosmos. They simply have no concept of large numbers, no concept of the size of the cosmos.

The universe today is 13.8 billion years old. By 22 billion years, the Sun will have finished its main-sequence lifetime and will have become a white dwarf. The Andromeda galaxy will have crashed into the Milky Way.

What happened before all this? What happened before the beginning? Astrophysicists have no idea. Or, rather, our most creative ideas have little or no grounding in experimental science. In response, some religious people assert, with a tinge of righteousness, that something must have started it all: a force greater than all others, a source from which everything issues. A prime mover. In the mind of such a person, that something is, of course, God.

I claim no special knowledge of when the end of science will come, or where the end might be found, or whether an end exists at all. What I do know is that our species is dumber than we normally admit to ourselves.

The closest anybody has come is to presume dark energy is a quantum effect—where the vacuum of space, instead of being empty, actually seethes with particles and their antimatter counterparts. They pop in and out of existence in pairs, and don't last long enough to be measured.

When I look up at the night sky, and I know that, yes, we are part of this Universe, we are in this Universe, but perhaps more important than both of those facts is that the Universe is in us. When I reflect on that fact, I look up—many people feel small, 'cause they're small and the Universe is big, but I feel big because my atoms came from those stars.

Dark matter particles should be passing through your body right now.

Astrobiologists now believe that the existence of life throughout the universe requires: 1. a source of energy; 2. a type of atom that allows complex structures to exist; 3. a liquid solvent in which molecules can float and interact; and 4. sufficient time for life to arise and to evolve.

The four most common, chemically active elements in the universe—hydrogen, oxygen, carbon, and nitrogen—are the four most common elements of life on Earth, with carbon serving as the foundation of biochemistry. We do not simply live in this universe. The universe lives within us.

We do not simply live in this universe. The universe lives within us. That

Can space exist in the absence of matter, if matter defines the edge of space?" Merlin

At one time or another every one of us has looked up at the night sky and wondered: What does it all mean? How does it all work? And, what is my place in the universe?

What if the universe was always there, in a state or condition we have yet to identify - a multiverse, for instance, that continually births universes? Or what if the universe just popped into existence from nothing? Or what if everything we know and love were just a computer simulation rendered for entertainment by a super-intelligent alien species?

So what is the stuff? Nobody knows. The closest anybody has come is to presume dark energy is a quantum effect—where the vacuum of space, instead of being empty, actually seethes with particles and their antimatter counterparts. They pop in and out of existence in pairs, and don't last long enough to be measured.

Cosmologists have plenty of ego. How could you not when your job is to deduce what brought the universe into existence?

Are we missing some basic pieces of the universe that once were? What part of the cosmic history book has been marked access denied? What remains absent from out theories and equations that ought to be there, leaving us groping for answers we may never find?

We do not simply live in this universe. The universe lies within us.

The Physics of Immortality

But what if the universe was always there, in a state or condition we have yet to identify—a multiverse, for instance, that continually births universes? Or what if the universe just popped into existence from nothing? Or what if everything we know and love were just a computer simulation rendered for entertainment by a superintelligent alien species?

A fontos, ám ellentmondásos felvetés azt állítja, hogy a Földön található fajok egy kollektív organizmust alkotnak, ami folyamatosan (ám akaratlanul) úgy szabályozza a bolygó atmoszférájának összetételét és klímáját, hogy az biztosítsa az élet feltételeit – és ezzel a folyékony víz jelenlétét.