[sugar] Remarks on the Work of Sugar

[Benjamin M. Schwartz]

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Michael Stone wrote:
| 5) Sugar is built on technologies that incentivize its developers to
| recompute prior results which could be cached across boots.

Sugar was intended to write to disk absolutely as little as possible, and
also to reboot as infrequently as possible.  I will attempt to find
references to these intentions from years ago.

Regarding the majority of your points, I would say:  Sugar has been, and
continues to be, in a constant rush just to implement the desired
functionality, regardless of efficiency.  The question has long been "how
can we code this as fast as possible", not "what is the ideal way to
implement this".  I think that is a good thing.  I think we will need
retain this mindset through 9.1, in order to finally deliver a Sugar that
has the features required for usability.

I hope that Sugar developers can spend 2009 focusing on efficiency,
laziness/memoization/eagerness, and delayering.

- --Ben
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