Alex Russell
Just read @seldo's (well written and argued) response to my post from last week, and while I owe it a larger airing, a few things jump out:
First, "SPA" vs. "not-SPA" is about data model locality, and I'm not sure that sites that could easily be built with progressive enhancement and Ajax partials count.
See the diagram from the end of my longer post:
Alex Russell
@seldo One developer shared with me that an experiment demonstrated that every KB of JS on their mid-market e-commerce SPA cost them ~$700/K yr in revenue.
Outside the excesses of the Bay Area (which they and their customers assuredly are), there's literally no business argument for the MANY hundreds of KB of JS they were sending.
Alex Russell
@seldo But at a larger level, which Laurie helpfully frames, this *is* about total addressable market tradeoffs and the extent to which they are optimal.
I sense that a large delta in our perspectives comes from the respective ways in which we spend time. More than 30% of my time over the past 8 years (and > 50% of it now) has been doing direct consulting with teams like the ones that build the apps he mentions.
I'm living in the trough of disillusionment, which generates a bias.
Alex Russell
@seldo OTOH, I think it's fair to say that this has given me more direct and high-bandwidth access to the decision-makers and the narratives they have used to justify their choices.
Laurie's model is so far divorced from this argumentative and marketing morass that I do not recognise it...except in the effect of shrinking the TAM.
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