In Saint Seiya: Episode G Assassin's, Chapter 11, Capricorn Shura, while fighting Roland, was exhausted and outmatched.
Roland was vastly superior to/than Shura. Shura struggling to win had to achieve a miracle to defeat Roland. He surpassed the "intial expansion of the universe" which clearly is about the inflationary epoch of the big bang. With this miracle he defeated Roland in one strike.
Since, we don't have any given size for the Universe in Saint Seiya, but we do know from the scans that the Intial expansion of the universe allowed it to become a "Macrocosmo." For a safe, and easy low end I will have to use the real life universe size for the calculatio.
According to Wikipedia, the size of the observable universe is 93 Billion Light Years. Since, the Universe is supposedly a sphere, the expansion spread from the centre to the side as it's radius.
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So, the radius of the Universe must be 46.5 Billion Light Years.
The time taken for the initial expansion to cover the entire universe in a short time is called the Plank epoch which was in the order of 9.9 × 10^(-36) seconds.
So, we've got a size and a time span. Now, it all comes down to the simple calculations to figure out how fast Shura had to be going to be faster than the Initial Inflation of the Universe.
Distance: 4.65 × 10^10 Light Years or 46.5 Billion Light Years. One light year contains 9.46 × 10^15. So, the total distance in metres is 4.65 × 10^10 × 9.46 × 10^15 m= 4.39 × 10^26 m
Time: 9.9 × 10^-36 seconds
Speed of the Inflation= 4.39 × 10^26/ 9.9 × 10^(-36)= 4.44 × 10^61 m/s
To determine the speed of the Inflation in respect to the speed of light, we need to divide it with the speed of light.
4.44 × 10^61/ 2.998 × 10^8= 1.48 × 10^53 c or 148 Sexdecillions times the speed of light.
Thus, Shura had to be AT LEAST 148 Sexdecillions c to be able to exceed the expansion's speed of the Saint Seiya Franchise.
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They used these scans for it.
https://imgur.com/a/SdSWGM6?fbclid=IwAR1FxYzlyS9_ZHI56BFnQngP2B9faYUR4ggPHhn8vFYupggxkvPd8RuIgPU