Recent content by agnostikos

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    Graduate Is/are there any invariant OBJECTS in relativistic? Is there a substratum?

    Why does cosmic background radiation not provide a 'preferred reference frame'?
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    Graduate How many dimensions are there, really?

    String theory has afforded mankind an incalculable benefit. It has been such a brashly sexy field that it has doubtless kept stringmeisters off of Wall Street. Can you imagine some mathwhiz inventing an "exotic financial instrument" to suck liquidity out of parallel universes? And such a thing...
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    Ring in the New Year at PF's Party!

    Lesson 1, string theory: no points in space, only Planck lengths/areas/volumes. Lesson 2: a calabicle (as I call them) at every point in space. Is this inadequate language, or confused thinking, or what am I missing?