Is spacetime absolute

Answer 1

Yes, "Spacetime is absolute". The idea of "spacetime " should be replaced with 4-space. Space is homogeneous. There is no time dimension. A point in space is p= r +ix +jy +kz= r + d where r is the real dimension of space and d is the three vector dimensions of space. Space is a quaternion space where i^2=j^2=k^2=ijk=-1.

There is no time intrinsically in space. Time can be introduced by recognizing that the real dimension r=ct where c is the speed of light. This would give p=ct + d and

p^2= (r^2- d^2) + 2rd= ( (ct)^2 - (x^2 + y^2 + z^2)) + ct(ix + jy + kz)

p^2= (ct)^2( 1 -(x^2 + y^2 + z^2)/(ct)^2 + (ix + jy + kz)/ct)

p^2= (ct)^2 (( 1- (v/c)^2) + 2v/c , where v=d/t.

Light is a scalar and c is a speed not a vector. Time is a scalar also not a vector, r, c and t are all real numbers or scalars, not vectors. Vectors are designated by i, j and k, unit vectors. The product of a vector and a real number is a vector. The product of a unit vector and a real is a vector.

Lorentz Contractions and Einstein's Relativistic mass are the result of treating light as a vector.

Relativity's Beta=v/c=cos(vr) is the redshift zand

Gamma = 1/sqrt(1 -(v/c)^2)= 1/sin(vr), where the angle vr is the angle between the radial center and the velocity vector v.

When v=c the angle is zero. As you can see gamma blows up at thiis condition. Relativity Theory also blows up on its " relativity spacetime ".

Einstein's Curvature of spacetime is another misconception of space . The deflection tangent is tan x= y/Rs where y is the deflection to earth over the distance to the sun. Tan x =1/2g(R/c)^2/R=1/2gR/c^2 where g is the gravitational constant on earth g=9.9. This gives tan x=8.25E-6 for angle 1.7'. Einstein's formula is whack and has nothing to do with the distance from the earth and the deflection to the earth.

There needs to be a major return to Absolute Space, quaternion Space.

Answer 2

According to the theory of relativity, spacetime is not absolute but rather a dynamic and interconnected fabric that can be affected by the presence of mass and energy. The theory suggests that spacetime can be curved by massive objects, leading to phenomena such as gravity. So, it is a fundamental part of how we understand the universe, but not fixed or absolute.