I had a little trouble getting there but then had to go for a family thing I had forgotten literally at 3 to 3 ... probably just as well I would have liked to discussed dark energy at length ... and seek his view how strong it really is and if we see could see it as the only force the sums may not have have to water down its effect by adding attraction to the equation.. wimps sortta get to the problem in so far as the dark energy being generated by very small particles that are hard to detect... nutrineos fit into that group I think.
Thanks Bert for posting the details very interesting.