Talk:Shearing layers

Orphan tag

I am removing the orphan tag, having created an article for Frank Duffy (architect) and inserted links from relevant articles on software architecture. I believe the concepts of Shearing Layers and Pace Layering are extremely important for layered software architecture, including service-oriented architecture. I have explained this on my blog. --RichardVeryard (talk) 22:42, 9 April 2009 (UTC)

Bad Link

External link to Pace Layering is not valid (any more) 143.164.102.14 (talk) 12:46, 12 February 2016 (UTC)

Evolution as an exchange of information between shearing layers

I'm half-remembering a Gregory Bateson book, which ~might~ have been Mind and Nature, but I'm not sure.

He observed that, in order for a species to evolve in response to a new environmental stress, enough of its members have first to survive it, so there is a hierarchy of control (taking altitude as (I think) his example):
- immediate metabolic adjustment: breathe more and circulate blood more
- metabolic reconfiguration: make more red blood corpuscles
- epigenetics: make organisms that are biassed to have more red blood corpuscles, which will possibly be in service for longer
- genetic: make red blood corpuscles that cope better with long service lives

For buildings, this would be architects looking at the distribution of usages on the fast layers, as an input into the modally best price-performance on the slower layers. If this is real, then it would be good to have it featured in the article, with citations.
~2026-11845-29 (talk) 03:13, 23 February 2026 (UTC)