Date: Sat, 6 Jul 2024 07:47:37 +0200
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Subject: Re: Spacetime
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From: Maciej Wozniak <mlwozniak@wp.pl>
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W dniu 06.07.2024 o 07:15, Thomas Heger pisze:
> Am Freitag000005, 05.07.2024 um 07:06 schrieb Maciej Wozniak:
>> W dniu 05.07.2024 o 06:53, Thomas Heger pisze:
>>> Am Donnerstag000004, 04.07.2024 um 18:39 schrieb gharnagel:
>>>> Thomas Heger wrote:
>>>>>
>>>>> Am Sonntag000030, 30.06.2024 um 15:03 schrieb gharnagel:
>>>>> >
>>>>> > Thomas Heger wrote:
>>>>> > >
>>>>> > > I dislike stringtheory and had no extension of that theory in 
>>>>> mind.
>>>>> >
>>>>> > But M-theory STILL fits that description.  Just because you don't 
>>>>> like
>>>>> > it doesn't mean it's false.
>>>>>
>>>>> Sure, but dislike wouldn't proof it neither.
>>>>>
>>>>> 'String theory' is based on 'strings' and those are supposed to be
>>>>> material objects (kind of 'superparticles').
>>>>>
>>>>> But I tried to show, that the particle concept itself is wrong.
>>>>
>>>> I don't think it's possible to disprove either concept.
>>>>
>>>>> So, matter needs to be 'relativistic' and made from absolutely 
>>>>> nothing.
>>>>
>>>> Well, the quantum foam idea allows that, but the existence of such
>>>> matter doesn't last long.  I think that disproves that durable matter
>>>> can come from nothing.
>>>>
>>>>> I had an idea for this to become possible. I just take spacetime of GR
>>>>> for real and assume, that spacetime would consist of kind of 
>>>>> 'pointlike
>>>>> elements'.
>>>>>
>>>>> That is something like a point with features and higher dimensions 
>>>>> than
>>>>> points in Euclidean space have.
>>>>
>>>> Frankly, I tend to disbelieve in the concept of spacetime.
>>>>
>>>>> These 'elements' are connceted multiplicative 'sideways', like a 
>>>>> certain
>>>>> equation for quaternions, which is used for rotations.
>>>>>
>>>>> This concept is my own invention, called 'structured spacetime' and
>>>>> needs no strings.
>>>>>
>>>>> It is actually relatively simple and needs only very few unusual
>>>>> assumptions.
>>>>>
>>>>> One unusual assumption is: points may have features and more than 
>>>>> three
>>>>> dimensions.
>>>>
>>>> I think points are nonexistent.  They are a mental invention to express
>>>> geometrical concepts, just like numbers were invented to express
>>>> mathematical
>>>> concepts.
>>>
>>> Sure: a point is actually meant as coordinate in space, hence not 
>>> really real in a coordinate free space.
>>>
>>> But real things are usually meant to consist of something.
>>>
>>> If spacetime is real and a smooth continuum, than spacetime would 
>>> consists of 'pointlike elements'.
>>
>>
>> If you take  any of mathematically defined
>> spaces - it's built of 2 elements: a set
>> of something and some relation defined
>> about that set of something.
>> Applies also to "physical" space and to
>> spacetime.
>>
> 
> 'space' in math is something else than space in physics.

Still most of properties apply. Otherwise
we would have a different word for that.

> 
> If you regard 'space' as that what is left, if all matter is taken away, 

But I don't. I'm a professional.