String theory

>string theory

JUST

I mean what the *bleep* do we know?

String hypothesis
ftfy

brane theory
sacred geometry

[math]\int \mathcal{D} \varphi \mathcal{D}\bar \varphi \mathcal{D}\psi \mathcal{D}\bar \psi \exp \left[ {\frac{{ - 1}}{{4\pi }}\int\limits_\Sigma {{\operatorname{d} ^2}z\left[ {{g_{ij}}\left( {{\partial _z}{\varphi ^i}{\partial _{\bar z}}{{\bar \varphi }^j} + {\partial _{\bar z}}{\varphi ^i}{\partial _z}{{\bar \varphi }^j}} \right) + {B_{ij}}\left( {{\partial _z}{\varphi ^i}{\partial _{\bar z}}{{\bar \varphi }^j} - {\partial _{\bar z}}{\varphi ^i}{\partial _z}{{\bar \varphi }^j}} \right) + i{g_{ij}}\left( {\bar \psi _ - ^j\operatorname{D} \psi _ - ^i + \bar \psi _ + ^j\operatorname{D} \psi _ - ^i} \right) + {R_{ijkl}}\psi _ + ^i\bar \psi _ + ^j\psi _ - ^k\bar \psi _ - ^l} \right]} } \right][/math]

Cthulu goes insane from this

Nope, its a mathematical theory, not a scientific hypothesis.

Theories can be tested. String """Theory""" cannot.

>theoretical physics in 2017

Not mathematical theories. If you want to be a pedant, at least make sure you're not wrong.

Not what "Theory" means in physics.

At least string theory predicts gravity
>mfw

B model is the cooler topological string model thanks for this.

more branes pls

[math]S = - {T_{Dp}}\int {{d^{p + 1}}\sigma } {e^{ - {\Phi _0}}}\sqrt { - \det \left( {\left( {{g_{\mu \nu }} + {B_{\mu \nu }} + k{F_{\mu \nu }}} \right)\left( {{\partial _\alpha }{X^\mu } - {{\bar \Theta }^A}{\Gamma ^\mu }{\partial _\alpha }{\Theta ^A}} \right)\left( {{\partial _\beta }{X^\nu } - {{\bar \Theta }^A}{\Gamma ^\nu }{\partial _\beta }{\Theta ^A}} \right) + k\left( {{{\bar \Theta }^1}{\Gamma _\mu }{\partial _\beta }{\Theta ^1} - {{\bar \Theta }^2}{\Gamma _\mu }{\partial _\beta }{\Theta ^2}} \right)\left( {{\partial _\alpha }{X^\mu } - \frac{1}{2}{{\bar \Theta }^A}{\Gamma ^\mu }{\partial _\alpha }{\Theta ^A}} \right)} \right)} + {\mu _p}\int {{{\left( {C \wedge {e^{B + kF}}} \right)}_{p + 1}}} [/math]

i got this. the answer is 6

My good friend, what do you call this autism?

Math.

Physicists shit all over string theory out of embarrassment

They decided to side with a concept that can't even describe gravity KEK

Can I make bigger contributions to physics by just studying math and biostatistics/probability then picking up the physics part myself? Or should I take formal courses.

My advisor has a PhD in math and he does quantum spin systems.

DBI Action

I don’t understand how this comment is constructive, or encourages the reader to think more deeply about anything. It appears to me that this comment’s only purpose is to display the cleverness of the author. Unfortunately, despite the collective efforts of the commentariate, we do get infiltration from those who are apparently determined to give the impression that they are incapable of parsing an entire piece of writing and reading it as a whole.

As has been previously noted (regular readers will be aware) we (that’s the “Royal we” — fellow commenters, occasional contributors such as myself and the moderator team) are engaged in an ongoing attempt to keep the quality of comments at its former impeccably high standard. Sadly, this is more of an effort than it should be.

And as a scientist, it is rather tiresome having to try to explain to the occasional numpty who happens across a post basic reading comprehension skills, how to follow an argument when it is constructed long-form and the ability to master data interpretation.

And I’ve just caught up on all the subsequent comments on this page. All the other commenters have managed to make coherent and intelligible contributions that furthered my understanding or gave me something to think about, because they took the trouble to type more than a single sentence. I don’t agree with everything that’s been said in other comments. Quite the opposite in a couple of cases. But at least I understand what was expressed and the intention behind it.

Yes. This thread has otherwise been so constructive.