First, the grapefruit volume estimate of the visible universe after inflation ends locally (as it should when it exits its slow roll phase, considering we see it has quantum fluctuations) is a bit dated. If you take the Planck 2018 observations of low constraint on inflation energy density the...
Reading the Wikipedia article and come back is likely the best idea. My naive attempt to riddle the second set of questions is that there is a confusion between biological evolution theory and cosmological evolution of the expanding universe. This is a confusion deliberately sourced by...
I got this in my mail box since I commented here ... oh, so long ago. A quick update is that singularities and inflation have been discussed.Irrelevant nitpicking first: Drakkit and phinds claim that singularities would give us no information. This is a fact in physics (signaling theory...
The question reminded me of the article that BillTree mentions, that shows how UV light is probably the largest problem on the surface. (Mind that the experiment is limited as of yet using just one hardy strain; though since it was drought resistant it should also be radiation resistant due to...
It is a suggestion to look at. But my reaction is perhaps best summed up in short points:
The suggestion feels like an artificial attempt to fix something that isn't broken.
It looks to be analogous to the use of the mathematical dimension i and so doesn't add to the algorithms for solving...
The paper is paywalled. Why? Now I am forced to do a summary judgment from little detail!
Quite frankly it doesn't seem interesting in competition with my huge to-read-pile from the highlight. Hints of Koonin's misunderstanding of anthropic selection ("Big Bang"), hints of religion/Monod's...
This is an unnecessary side show, since evolution (making life emerge through biochemistry) is known to be a completely natural process.
"Free will" is by the way an odd gap to try to stuff magic in, since it exists as an effective theory and as a philosophic idea of no natural consequence. Our...
My take:
There are two main theories of life emergence, soup and vent. The soup theory is preferred by many chemists & biochemists as it looks into chemical pathways to replicating protocells, the vent theory is preferred by many geologists & biologists as it looks into phylogenetic pathways...
Considering this is England's work from 2 years back, I'm not sure it merits "novel" any longer. I remember reading it as I am interested in astrobiology.
England's initial work on replicators is fairly solid what I know of, it nicely explains why RNA predates DNA as genetic material and not...
Very useful synopsis, as the paper is on my to read pile!
Some hasty reflections:
- I am not surprised after the Lokiarchaeota phylum result. Moreover the usual comparison between prokaryote and eukaryote energy efficiency (such as Lane's) is problematic. Comparing apples with apples...
Thanks, good catch!
Though I don't think that is essential for the derivation [but I didn't check]. Everyone at rest agrees on the vacuum temperature, so the relative CH location is what counts.
Been there, (unfortunately) done that. Wasted 30 minutes of productive study time. :eek:
Though I recouped it later by studying the differences too. :smile: There are some good material that is unique in both. (You don't need to watch both though, either one will do. The later is more up to...
A more alluring hypothesis is that the main lineages of viruses have ancestors in stem lineages to cellular life. I.e. +ssRNA, retrovirus and some dsDNA virus could have split off from the stem of our RNA/protein -> DNA/protein cellular universal ancestor lineage, predicting our shared genetic...
I like what paleanthropologist John Hawks and speciation specialist Jerry Coyne writes on this. They agree that anatomically modern humans, Neanderthals and Denisovans are subspecies, so we are today a hardy hybrid rather than a puerile purebred. [From the recent sequencing of 4 kyrs old african...