Is the universe twice as old as we thought?

The answer is no if we think that the universe is the visible material. Nobody knows the "real age" of the universe. Because there are many unknown variables we cannot say the precise age of the universe. We can determine the age of the visible universe, and then we can make theories of the age of the invisible universe. 

The key question is: "Are dark and visible energy along with dark and visible material released at the same moment"? 

The key to determining the complete age of the universe is dark energy. Dark energy is the mysterious wave movement that is the most dominating effect in the universe. The thing that we should know is the wavelength of that energy. 

We know that dark energy interacts with something that interacts with gravity. So there must be some element. That makes dark energy interact with something in the universe and that something is the thing that allows dark energy to push the universe larger and larger. 

But otherwise, all our cosmological models, are connected with the thought The Big Bang released that dark and visible material at the same time, and that means the universe could be older than we think if we think that dark matter is one part of the universe. There are a couple of things that we must realize before we are going to estimate the universe's age. 

We must remember that material is energy. And otherwise, energy is material. And Schwinger effect can turn electromagnetic fields into material. And if we think like this. There is only energy in the universe. Aging is the process where material releases energy. The energy is in the form of wave movement. Or it is stored in particles. Elementary particles are yarn-ball-looking structures of electromagnetic fields. 

Everything in the universe is energy. Materia and particles are one energy form. And when some energy field travels through the particle it starts to resonate. That resonance will turn the radiation's wavelength to another. 

The fact is this. Over 96% of the universe is invisible to us. If we want to analyze the age of the system we must know all interactions in that system. We don't know if there is some giant black hole in the center of the Universe. If that giant black hole exists that thing stretches light that comes from its direction.  If we want to make a model of the system, we cannot make it if we can see only 4% of it. 

Dark energy is also a problematic thing. There is energy that is invisible to us. The energy itself doesn't interact with visible particles. But there is something that makes dark energy interact with something that causes gravitational or some other effect that expands the universe. Without that interaction, dark energy cannot rip the universe into pieces. 

An entire universe is full of interactions. All electromagnetic and gravitational waves interact with each other. Those impacting fields and radiation changes their wavelength and energy level. 

In Universe 

70% is dark energy

26% is dark matter

4% is visible materia

1) We don't know how long Big Bang existed. We know that the Big Bang was a very high-energy event. But then we must realize that the temperature or energy level in the Big Bang was not decreased immediately to the level, where the first gluons started to form. Before the first gluons were superstrings that formed gluons. 

Then those gluons along with quarks formed quark-gluon plasma. And when the universe's temperature decreases. That quark-gluon plasma started to form protons and neutrons. There is a possibility that some other particle types formed when the energy level of the universe was too high that gluons could form. 

2) The red light is tired. That means the gravitational effect back to the electromagnetic wave movement can increase the wavelength of the light. So if light travels from another side of the universe, gravitation can increase the wavelength. 

The gravitational background and especially things like the very powerful gravitational center behind those lightwaves can increase the wavelength of the radiation. So those gravitational centers can cause virtual redshift. That makes those objects seem to be farther than they are. 

Things like dark matter cause grey hair for cosmologists. Before researchers can get observations about dark matter they cannot calculate the gravitational effect of dark matter. There are theories that most dark matter travels before and after visible material. That means there could be cold and hot dark matter in nature. 

Hot dark matter would travel before visible material. And cold dark matter. Which particles would be a lower energy level than visible material?

3) We don't know, did the Big Bang released dark matter at the same time as visible material. 

4) We don't know if dark matter is real. Or is it a group of virtual particles, the electromagnetic whirls that act like real material but vanish immediately?

In that case, those virtual particles or standing EM waves are things. That causes a gravitational effect just like real or stable particles. 

5) Sometimes, we forget time dilation in the early high-energy universe. The high-energy environment caused the situation. Where time moved slower in the young universe than in the modern universe. So that means the time dilation makes it very hard to estimate the universe's age. 

6) We must determine the point where we can say the universe began its existence. Normally that point is the Big Bang. And before any particle could form the superstrings travel in the universe. Then those superstrings formed gluons. And then the first quark formed. 

The age of the universe is high. But can it be twice as high as cosmologists predict? This is one thing that we must think, about before we can say yes or no. The universe might be older than we think, but it's not two times older than we thought. And the thing is that there is no observations or even glimpse of dark matter. 

https://www.astronomy.com/science/is-the-universe-twice-as-old-as-we-thought/