Kevin Smith (2013-11-13T17:54:13.000Z)
Hi Mark,

The only approximation that seems acceptable to me is one that (a) never
has false negatives, and (b) provides a simple way for developers to
receive notification on and fix false positives.

Over in Dart they have implemented zones.

http://api.dartlang.org/dart_async.html

{ zen }
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domenic at domenicdenicola.com (2013-11-17T18:11:54.814Z)
The only approximation that seems acceptable to me is one that (a) never
has false negatives, and (b) provides a simple way for developers to
receive notification on and fix false positives.

Over in Dart they have implemented [zones](http://api.dartlang.org/dart_async.html).