[e2e] [SPAM] Re: a means to an end

Jon Crowcroft Jon.Crowcroft at cl.cam.ac.uk
Fri Nov 14 04:34:14 PST 2008

indeed if we think of this as an Onion
with RL as an outer layer, and SL as an inner layer
(and as many people have been doing, mining
interactions between RL and SL via footprints in the sand
in the SL) then one consideration about how one
creates mappings from id (in RL) to location (in RL/SL interface)
might be privacy, so the onion immediately brings to mind

of course, if all you are interested is SL, then let me onion 
route you this:

In missive <E1L0tqw-00068S-00 at mta2.cl.cam.ac.uk>, Jon Crowcroft typed:

 >>to quote someone who isn't a physicist,
 >>we are all living in a material world,
 >>and in that world we are limited to light cones
 >>within which there are _causality_ principles
 >>(as well as entropic) - hence relative locations have
 >>a bearing on infrmation flow between objects
 >>the ordering of messages on this mail list 
 >>(and the rate of increase of entropy in the universe) 
 >>Is bounded at least in part by latency
 >>latency shows up quite a lot in distributed algorithms (routing,
 >>location/mapping, memory/cpu speed/power, BFT schemes, etc etc:)
 >>the internet to date lives in a virtual world and data oriented
 >>mnetowkring likes to fool itself it is in some steady state in an 
 >>"infosphere" where we can plonk down copies of data willynilly, and
 >>therefore see no latency.
 >>reality bites - a lot more data goes in from, and even more usefully,
 >>out to the real world. the points it goes in and out (ingress/egresss_
 >>better be near people/devices/sensors/actuators that want the data
 >>since some data ingresses from the real world (my typing) and out (you
 >>reading on the screen >-here<-)
 >>we better route messages on paths that don't spend too long going
 >>arond the 13 dimensional infosphere too many times before they get
 >>oh, and the folks "out there" (i.e. the 4billion cellphones) have a
 >>better handle on how to do this than the folks "in here (the mere
 >>1billion internet backwoodspeople)....
 >>time to get more real...which is why i started this thread.
 >>In missive <20081113123241.167F16BE56B at mercury.lcs.mit.edu>, Noel Chiappa typed
 >> >>    > From: touch at ISI.EDU
 >> >>
 >> >>    > Why, however, is this relevant?
 >> >>
 >> >>My thoughts exactly...
 >> >>
 >> >>	Noel
 >> cheers
 >>   jon



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