We know that electrons cannot reach the speed of light when transferring between atoms can obtain a velocity of 99.9999% the speed of light. Scientists have determined that right after the Big Bang, particles were accelerating away from the Big Bang faster than the speed of light but then gain massed.
Therefore the point of .0001% after the Big Bang took place, when particles were accelerating faster than the speed of light is most likely the region of space-time where the particles gained mass and began to slow down.
If you look at the percentage of velocities of electrons that transfer between like atoms and different atoms but are still in the same class of atoms such as metallic atoms we can see when exactly after the Big Bang each atom gained its mass.
The main fact that needs looked into is the point at which the Higgs-Boson, the particle that gives atoms their, mass came into being.
How fast do electrons move?
As fast as you can get them going! Well not quite. One of the facts of life discovered in the 20th century is that the speed of light (300,000 kilometers per second) is the ultimate speed limit. As you add energy to the electron, it will go faster, but as you get it to go close to the speed of light, you find that you have to add even more energy just to bump it a bit faster. For example, with just over 220,000 eV (which stands for a convenient unit of energy called the "electron-volt"), you can get the electron up to 90% of the speed of light. But to get it to 99.9% (just another 9.9%), you need a total of over 11 million eV! One way of looking at this is that the electron gets "heavier" (more massive) as it goes ever faster. So it's harder to push it faster. At Jefferson Lab, a typical energy for the electrons in the beam is 4 GeV which is 4 billion eV. That means the electron is traveling at 99.9999992% of the speed of light. Close but still not 100%.
You may wonder how fast the electrons are whizzing around in the atoms around you. A good example (and the most simple to calculate) is the hydrogen atom which is in all our water. A calculation shows that the electron is traveling at about 2,200 kilometers per second. That's less than 1% of the speed of light, but it's fast enough to get it around the Earth in just over 18 seconds. Read up on what happens when nothing can go faster than the speed of light.
https://education.jlab.org/qa/electron_01.html
The Higgs-Boson is a particle with mass and therefore cannot reach the speed of light yet it gives particles their mass rather the Higgs boson does not technically give other particles mass. More precisely, the particle is a quantized manifestation of a field (the Higgs field) that generates mass through its interaction with other particles.
A quantized field that had to be present prior to the Big Bang and is part of another quantized field of interactions. One bridge leading to another bridge in essence that allowed particles in space to travel across gaining energy and mass to become atoms.
The Higgs-Boson would have to be able to direct atoms across the lower bridge and then onto its bridge putting the Higgs-Boson somewhere in the 99.9999993 to 99.9999997% of the speed of light with the lower bridge leading to the Higgs-Boson at 99.9999998 to 99.9999999% the speed of light. Prior to the Big Bang, Space-time that is our Universe in fact did travel faster than the speed of light. Space therefore has to be its own particle that travels faster than the speed of light.
If space wasn't its own particle or fields interacting with other fields traveling faster than the speed of light, then light would occupy all points in space at once creating a non stop sunny day as photons would reach their destinations instantly.
The photon cannot escape the gravitational pull of a black hole meaning that a black hole is functioning at faster than the speed of light internally, otherwise the light photon would be able to escape the black hole, rather it would simply pass through the black hole as light photons do not orbit celestial objects such as planets.
The field of space itself much like the Higg's fields that bridges interactions between particles must therefore bridge fields of interactions between the Higg's - Boson that allows the Higgs field to be come a bridge itself.
Space therefore travels faster than the speed of light or the field of space travels faster than the speed of light. There has to be field though that regulates space itself to create a bottle neck if you will, or the point that the grains of sand, the fields comprising space itself in one bulb that actually compresses the field of space into time or a measurable distance that smaller particles interact with each other at the bottle neck to create other fields that allow larger particles derived from space being compressed to have mass added to them that emerge into the lower bulb as particles with mass and then into atoms.
The point at which the field of space is being compressed along with the lower bridges leading up to the Higgs-Boson would all take place in the narrow neck of the hour glass. Each incremental bridge being closer to opening of the narrow neck that is compressing the fields of space from the top bulb or basically space time within space time.