Looks to me that it's just saying that if their new model holds true then singularities don't exist (like that which is described before big bang) and that by that logic the age of universe is unrestricted. Also that dark energy/matter doesn't exist as it is corrected for. As for expansion, that may still exist just not from a singularity. The most interesting to aspect to me is the reinvention of a concept close to ether, which was thought to convey light, but in this case conveys gravity. Like all theories, this requires further study and testing, thanks for the links.
Try the recruiting chat channel as well as making your sessions open to public for those hard missions. Hit me up if you see me online and need help. Good luck, it's a neat game once you make it past the rough start.
Having played Yakuza 2 first, it was just real hard for me to go back to the first one. But I usually have the same issue with anime too, whatever language I hear it in first usually causes the dub or subtitle version afterward to be less enjoyable.