[r-t] Method extension

Philip Saddleton pabs at cantab.net
Mon Apr 27 17:20:09 UTC 2015

On 27/04/2015 11:17, Philip Earis wrote:
> Me: "please...give a few idiot-proof worked examples"
> Philip: "&36-38.4-,2 example 1"
> Hmm - the pdf I opened simply has the grid of London Minor with a 
> single red and blue asterisk annotated.  I fear we have a classic 
> example of Reductio PABSurdam here :-)
You need to open more than one pdf - the numbers are the examples, the 
letters different stages.
> In any case, I think PABS' answers reinforce my overall point - any 
> algorithm to extension will be badly flawed (with inconsistencies, 
> hard-coded preference parameters, and historical baggage). Whilst some 
> algorithms are admittedly more flawed than others, and I think PABS' 
> approach is likely to be better than the status quo, even the examples 
> (and answers) in PABS' new approach quickly highlight some of its 
> limitations.
What limitations? Can you give an example of something that ought to be 
considered an extension that is not covered, and does not introduce some 
obvious feature that is not present at the lower stage?

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