%%GTD xp: 2types@technical impasse#难题

See also post on alpha geeks…
See also post on how fast you figure things out relative to peers
See also ##a few projects technically too challeng` 4me
See also https://bintanvictor.wordpress.com/2017/03/26/google-searchable-softwares/
see also https://bintanvictor.wordpress.com/2017/05/29/transparentsemi-transparentopaque-languages/

tuning? never experienced this challenge in my projects.
NPE? Never really difficult in my perience.

#1 complexity/opacity/lack of google help

eg: understanding a hugely complex system like the Quartz dag and layers
eg: replaying raw data, why multicast works consistently but tcp fails consistently
eg: adding ssl to Guardian. Followed the standard steps but didn’t work. Debugger was not able to reveal anything.
Eg: Quartz dag layers
Eg: Quartz cancelled trade

#2 Intermittent, hard to reproduce
eg: Memory leak is one example, in theory but not in my experience

eg: crashes in GMDS? Not really my problem.

eg: Quartz preferences screen frequently but intermittently fails to remember the setting. Unable to debug into it i.e. opaque.

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