Is spacetime quantized? (v1.0)

Something being quantized means there is a smallest unit of that something which cannot be divided further. 

Einstein thought space and time were intertwined in an infinite "fabric" like an outstretched blanket. A massive object such as the sun bends the spacetime blanket with its gravity, such that light no longer travels in a straight line as it passes the sun. In general relativity, matter and energy tells space how to curve while curved spacetime tells matter and energy how to move. This classical view postulates spacetime is continuous. The equations of general relativity (that defines gravity) are in a continuous spacetime.  Energy and all other forces except gravity (defined by relativity) are quantized. All verified quantum mechanical theories (that describe the fundamental particles and forces excluding gravity and quantizes things) to date also assumes space and time are continuous. 

In a leading theory of quantum gravity that tries to unify quantum mechanics and relativity called loop quantum gravity, space is broken into discrete blocks, which gives rise to a smallest possible length (expressed in units of the Planck length, about 10 -35 meters), area and volume of space-time—the fundamental building blocks of our universe. So, in this theory, space is quantized. While time is continuous in existing theories, many physicists have suggested that a discrete model of time might work in a workable theory of quantum gravity. However so far loop quantum gravity is not an established theory of the universe. Today, there is no conclusive evidence time is quantized or conclusive evidence that time is not quantized. Another leading theory called string theory however assumes spacetime is continuous. However so far string theory (or its variants) is not an established theory of the universe. 

Thus, in summary in todays established theories, spacetime is continuous, but there are potential theories on the horizon that quantizes them. On the other hand, this recent theory proposal I wrote about trades quantization for stochasticity for spacetime: https://jaykasi.blogspot.com/2023/12/a-new-unifying-physics-proposition.html. So, there are three proposed models for spacetime: Continuous, quantized or stochastic. There are also deep philosophical questions and contradictions that have to be addressed in any final definition of the nature of spacetime.