Lee Smolin hold this lecture about his book only two weeks ago that I just saw.
https://www.youtube.com/watch?v=r-L690pQhuo

On April 17, in a special webcast talk based on his latest book, Einstein’s Unfinished Revolution, Perimeter’s Lee Smolin argued that the problems that have bedeviled quantum physics since its inception are unsolved and unsolvable for the simple reason that the theory is incomplete. There is more to quantum physics waiting to be discovered.

Einstein thought the theory is incomplete as well. Smolin says that's the polite way to say that the theory is wrong:)

Quantum mechanics governs the microscopic world, not the macroscopic worlds of everyday objects. Wher is the border between the two worlds is an open question. See the books by Roger Penrose, ' "he emperor's new mind" and "Shadows of the mind".
Tullio

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It would be strange if anybody think Quantum Mechanics makes sense.
Even General Relativity doesn't make sense sometimes and Classical Mechanics with for example Newton's law of gravity that is action-at-a-distance.
Neither system is particularly intuitive.
To add further confusion there are several Quantum theories and interpretations.
For example Quantum Mechanics (QM) that describes nature with particles that can act as waves.
Quantum Field Theory (QFT) that describes nature made of fields where particles are just waves in which that field vibrates.

Apart from physics, without quantum mechanics there would be no structural chemistry and no molecular biology. What physicists call wavefunctions chemists call orbitals. Erwin Schroediinger, a critic of the Copenhagen interpretation of quantum mechanics, started molecular biology with his book "What is life? ", 1944.
Tullio

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A unified theory is still a Holy Grail. Einstein attempted to build one but failed, since he neglected the nuclear forces. Now nuclear forces, both strong and weak, are unified with electromagnetism but gravitation is not included. There are many efforts in this direction, including Quantum Loop Gravity by Carlo Rovelli and his coworkers in Marseille.. Meanwhile General Relativity is confirmed by every experimental evidence, including black hole mergings, neutron star mergings and, il seems, a merging of a black hole with a neutron star, the latest find of LIGO and Virgo. Both use quantum mechanics to reduce uncertainty in they laser arms, and so are a step forward.
Tullio

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There are many efforts in this direction, including Quantum Loop Gravity by Carlo Rovelli and his coworkers in Marseille.

Yes. That's another Quantum theory including QFT and were space and time are quantized.
That time is also quantized and comes in packages is very weird to say the least.
But you can use the mechanical clock as an analogy. Tick, tock, tick, tock...

Loop quantum gravity (LQG)
https://en.wikipedia.org/wiki/Loop_quantum_gravity

From the point of view of Einstein's theory, all attempts to treat gravity as another quantum force equal in importance to electromagnetism and the nuclear forces have failed. According to Einstein, gravity is not a force – it is a property of spacetime itself. Loop quantum gravity is an attempt to develop a quantum theory of gravity based directly on Einstein's geometric formulation.
To do this, in LQG theory space and time are quantized, analogously to the way quantities like energy and momentum are quantized in quantum mechanics. The theory gives a physical picture of spacetime where space and time are granular and discrete directly because of quantization just like photons in the quantum theory of electromagnetism and the discrete energy levels of atoms. Distance exists with a minimum.

Carlo Rovelli on Spacetime and the Structure of Reality
https://www.youtube.com/watch?v=ekKNjtckby0

Time does not exists, says Carlo Rovelli in a transmission on Italian Swiss TV. It is strange enough to say such a thing in a country of swatch makers, which measure time with great accuracy and often cost a good deal of money.Much of Switzerland gross product is provided by watches.
Tullio

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Carlo Rovelli has written a book about time.
If not time exist, why does Rovelli in the same time speak about the space-time fabric?
The Order of Time by Carlo Rovelli review – no difference between past and future
https://www.theguardian.com/books/2018/may/05/the-order-of-time-by-carlo-rovelli-review

There is a more profound puzzle underlying this spacetime confusion. At the deepest level of mathematical physics, time does not exist at all. There is, according to Rovelli, just one basic equation that points to an arrow of time: the second principle of thermodynamics, which says that entropy is always increasing, that the journey from order to disorder is down a one-way street.

https://www.youtube.com/watch?v=Vrb3FGal-oo

Quantum particles exist in space-time, but quanta of gravity are different - they are woven together to make space time itself.

Apparently his hypothesis is called the Thermal time hypothesis.
https://en.wikipedia.org/wiki/Thermal_time_hypothesis

Murray Gell-Mann has died. He was the author of the SU(3) symmetry, also discovered independently by Yuval Ne'eman. This produced the idea of quarks, first described as "partons" in the SLAC, Stanford Linear Accelerator.
Tullio

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Einstein's equations allow time travel. If true then time does not flow and is not a real Dimension. Both Gödel and Einstein tried to prove this one way or the other--Both passed away though without a such a proof.

Carlo Covelli writes that universal time does not exist. Each of us has a personal time.
Tullio

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Carlo Rovelli... I wish this stuff was easier to understand!

The big problem is that it take time to understand what time is. So if there is no time then we are lost:)
Pr. Sean Caroll try do it anyway with this lecture (30 min).
But he actually explain time very much the same as Carlo Ravelli does and that everything has it own clock.
https://www.youtube.com/watch?v=MAScJvxCy2Y

Another ways to explain time.
"The flow of time depend fundamentally of motion"
https://youtu.be/GguAN1_JouQ?list=PLsPUh22kYmNCLrXgf8e6nC_xEzxdx4nmY
"The flow of time is not a universal thing. It's defined locally for any observer but there is no global rate of time that everyone can agree on"
https://youtu.be/fHRqibyNMpw?list=PLsPUh22kYmNCLrXgf8e6nC_xEzxdx4nmY
So in this case time has a dimension very much like the 3 spatial dimensions since they are connected.

Kurt Gödel and I think Roger Penrose as well has some more ideas but those I don't understand at all...

Can We Save Schrödinger’s Cat?
https://www.youtube.com/watch?v=fnbS4wxRhOk
The Real Meaning of Schrödinger's Cat as told by Spaceman.
https://www.youtube.com/watch?v=ofMAy1KBGlM

I was reading a book written by a Jew, Les annees obscures de Jesus, by Robert Aron. In the first chapters he explains the Jewish concept of time, which is very different from our Greek and Latin concept. Strangely enough, it is ver close to the concept put forward by Carlo Rovelli in his books. I wonder if Rovelli has ever read that book.
Tullio

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I doubt that Carlo Rovelli read that book. And it seems to be very meta physical and religious to me.
But maybe he has read about this.
The concept of absolute time in science and jewish thought.
http://www.ldolphin.org/jtime.html
Rovelli quote “We inhabit time as fish live in water”:)

The Breakthrough Prize for Fundamental Physics in 2019 has been assigned to Sergio Ferrara (CERN) , Daniel Freedman (MIT and Stanford) and Peter van Nieuwenhuizen (Stony Brook University) for their theory of supergravity. The prize is of 3 million dollars. There is no experimental evidence of this theory, which predicts the existence of supersymmetric particles. LHC so far has not found them.
Tullio

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Aha. the mirror model of the Standard Model.
https://news.stanford.edu/2019/08/06/special-breakthrough-prize-awarded-supergravity-work/
Lot's of new particles to find like squarks and sleptons:)

Their theory of supergravity introduced a new particle called the gravitino as the super-partner to the graviton, the quantum carrier of gravity proposed by Albert Einstein.

But no one hasn't found the graviton in the Standard Model so how could it be a super-partner?

I an interview with Sergio Ferrara published today on "La Repubblica" paper he speaks of "anticommutatori". If they are Lie algebras of the type ab + ba instead of ab - ba, I must say I have used them in my thesis in 1966. But they were never published because nobody understood them in Trieste then. So I will not get any prize for using them.
Tullio

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My Alter Ego, Daddio, deserves a share of the No-Belly prize for defining super and Hyper-symmetry.