RECENT ARTICLES

Carlo Rovelli describes how black holes may transition to "white holes," according to loop quantum gravity, a radical rewrite of fundamental physics.

Could giant sea swells help explain how the macroscopic world emerges from the quantum microworld? (Image credit: MIT News)

A "retrocausal" rewrite of physics, in which influences from the future can affect the past, could solve some quantum quandaries—saving Einstein's view of reality along the way.

Figuring out if A causes B should help to write the rulebook for quantum physics.

Finding the universe's wavefunction could be the key to understanding the emergence of reality.

FQXI ARTICLE

January 18, 2017

Comment on this Article

Please read the important Introduction that governs your participation in this community. Inappropriate language will not be tolerated and posts containing such language will be deleted. Otherwise, this is a free speech Forum and all are welcome!

function ValidatePostText_main () {
form = document.addPostForm_main;
if (form.postText_main.value == '') {
alert ("The post contains no text");
return false;
}
else {
return true;
}
}

**Your name:**
(optional)

**Important:** In order to combat spam, please select the letter in this menu between 'U' and 'W':
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z

Recent Comments

read all article comments

Please read the important Introduction that governs your participation in this community. Inappropriate language will not be tolerated and posts containing such language will be deleted. Otherwise, this is a free speech Forum and all are welcome!

Please enter the text of your post, then click the "Submit New Post" button below. You may also optionally add file attachments below before submitting your edits.

HTML tags are not permitted in posts, and will automatically be stripped out. Links to other web sites are permitted. For instructions on how to add links, please read the link help page.

You may use superscript (10

^{100}) and subscript (A_{2}) using [sup]...[/sup] and [sub]...[/sub] tags.You may use bold (

**important**) and italics (*emphasize*) using [b]...[/b] and [i]...[/i] tags.You may also include LateX equations into your post.

Insert LaTeX Equation
[hide]

LaTeX equations may be displayed in FQXi Forum posts by including them within [equation]...[/equation] tags. You may type your equation directly into your post, or use the LaTeX Equation Preview feature below to see how your equation will render (this is recommended).

For more help on LaTeX, please see the LaTeX Project Home Page.

LaTeX Equation Preview

preview equation

clear equation

insert equation into post at cursor

LaTeX equations may be displayed in FQXi Forum posts by including them within [equation]...[/equation] tags. You may type your equation directly into your post, or use the LaTeX Equation Preview feature below to see how your equation will render (this is recommended).

For more help on LaTeX, please see the LaTeX Project Home Page.

LaTeX Equation Preview

preview equation

clear equation

insert equation into post at cursor

Attachments
[hide]

You may optionally attach up to two documents to your post. To add an attachment, use the following feature to browse your computer and select the file to attach. The maximum file size for attachments is 1MB.

Once you're done adding file attachments, click the "Submit New Post" button to add your post.

You may optionally attach up to two documents to your post. To add an attachment, use the following feature to browse your computer and select the file to attach. The maximum file size for attachments is 1MB.

Once you're done adding file attachments, click the "Submit New Post" button to add your post.

PAUL VALLETTA wrote on October 16, 2007

I believe this sentence:"Today, it is thought that a universe, such as our own, is born into an energy state known as a "false vacuum," called 'false' because, unlike the 'true' vacuum in which our universe abides, it is

unstable." ..is icorrect?, it is stating a "Universe such as our own" eminates from a "FALSE-VACUUM" energy state, and then states that our Universe is abiding within a "TRUE-VACUUM" ?

Which is it?..either way the initial inflation period, determines a...

I believe this sentence:"Today, it is thought that a universe, such as our own, is born into an energy state known as a "false vacuum," called 'false' because, unlike the 'true' vacuum in which our universe abides, it is

unstable." ..is icorrect?, it is stating a "Universe such as our own" eminates from a "FALSE-VACUUM" energy state, and then states that our Universe is abiding within a "TRUE-VACUUM" ?

Which is it?..either way the initial inflation period, determines a...

GEVIN GIORBRAN wrote on August 28, 2007

Hi Richard,

I like the analogy of a loaf although I use the idea of a whole pie instead, but I would argue there is an obvious way of slicing the loaf or the pie. Since we invariably are slicing the whole of all universes in the multiverse, and inline with Tegmark's idea the universe is ultimately a mathematical system, I will call the whole zero, and think of it as the ground state. We can most obviously slice zero in half, thus dividing apart all positive numbers from all negative...

Hi Richard,

I like the analogy of a loaf although I use the idea of a whole pie instead, but I would argue there is an obvious way of slicing the loaf or the pie. Since we invariably are slicing the whole of all universes in the multiverse, and inline with Tegmark's idea the universe is ultimately a mathematical system, I will call the whole zero, and think of it as the ground state. We can most obviously slice zero in half, thus dividing apart all positive numbers from all negative...

read all article comments

And select the letter between 'D' and 'F':