OK, I concede. I read Davies 2004 for a fuller explanation, "
On Thu, Feb 6, 2014 at 8:38 PM, LizR <[email protected]> wrote: > On 7 February 2014 14:20, Richard Ruquist <[email protected]> wrote: > >> On Thu, Feb 6, 2014 at 4:44 PM, LizR <[email protected]> wrote: >> >>> On 7 February 2014 02:01, Richard Ruquist <[email protected]> wrote: >>> >>>> On Thu, Feb 6, 2014 at 2:36 AM, LizR <[email protected]> wrote: >>>> >>>>> So he's saying the number of proteins you COULD make from around 60 >>>>> amino acids exceeds the Lloyd limit - not that there in fact is a Lloyd >>>>> limit's worth of information stored in a given protein, brain, organism or >>>>> even biosphere. >>>>> >>>> >>>> No. Read again >>>> >>> >>> OK... >>> >>> >>>> It is of interest to determine just how complex a physical system has >>>> to be to encounter the Lloyd limit. For most purposes in physical science >>>> the limit is too weak to make a jot of difference. But in cases where the >>>> parameters of the system are combinatorically explosive, the limit can be >>>> significant. For example, proteins are made of strings of 20 different >>>> sorts of amino acids, and the combinatoric possibility space has more >>>> dimensions than the Lloyd limit of 10^120 when the number of amino >>>> acids is greater than about 60 (Davies, 2004). >>>> >>> >>> That still seems to be saying what I just said. The "dimensions in >>> possibility space" is surely equivalent to the number of different proteins >>> you could make? >>> >> > >> NO WAY >> >>> >>> Go on then, what is it saying? Please give a little more explanation, if > you keep on just saying "no" I will have to assume you don't actually have > anything of interest to say. > OK, I concede. I read Davies 2004 for a fuller explanation, and I found nothing relevant to his remarks that are under discussion. He wrote one paragraph on the Lloyd limit and concluded "These sorts of arguments are at best suggestive". In fact the entire paper was about quantum effects in biology. He even suggests replacing bits by qubits. No mention of "60 amino acids is about the size of the smallest functional protein" and so on. I agree that he is talking about the number of different protein configurations that may be made and when that number exceeds the Lloyd limit, strong emergence may result in some such proteins actually being made. But that seems very ad hoc to me now- something you seem to have realized immediately. My apologies, Richard " > > > -- > You received this message because you are subscribed to the Google Groups > "Everything List" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/everything-list. > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
