Push, push, push. Expanding your comfort zone.http://sivers.org/comfort
@morganpyne Agreed! I have a dive computer that measures depth & heart rate, saved in a graph to see later. I saw my panic attack at 40m. 
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@sivers glad you survived and hope it didn't put you off learning to dive properly. Come dive the Poor Knights next time you're in NZ.Thanks. Twitter will use this to make your timeline better. UndoUndo
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@sivers there is _usually_ no speed limit, except when ascending from a dive :-)Thanks. Twitter will use this to make your timeline better. UndoUndo
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