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A comment on Intel Skylake/Kaby Lake processors: broken hyper-threading. Parent comment

Re:Intel Skylake/Kaby Lake processors: broken hyper-threading by roywiggins on Sunday June 25, 2017 @01:22PM (#14631070)
The problem with finding a physics bug is that it's liable to be amplifiable. Break conservation laws just a little bit and suddenly you have potential for exponential runaway leading to an unplanned reality excursion, and say goodbye to your light-cone.
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Re:Intel Skylake/Kaby Lake processors: broken hyper-threading by justinclift on Sunday June 25, 2017 @01:34PM (#14631129)
Well, by definition the behaviour would be undefined so could go any which way. ;)

Modern day VM software has various levels of exception checking, and code to catch/mitigate/etc when bugs crop up.

So, a universe-capable simulator might have any kind of behaviour if/when a bug occurs. It doesn't need to be an unbounded, runaway scenario. :)

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Re:Intel Skylake/Kaby Lake processors: broken hyper-threading by rbanffy on Sunday June 25, 2017 @06:48PM (#14632663)
And, if a very bad reality excursion happens, you scrap that branch and restore the last checkpoint. Nobody inside the simulation will ever remember it. You only bother fixing it if halt/scrap/restore becomes a burden.

It probably happens more often than we imagine ;-)

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