It's complex because of LAG. Even a finger stick shows you your blood sugar in the past. When you take insulin it ALSO has a lag, as long as 30 to 90 minutes.

It's complex because of LAG. Even a finger stick shows you your blood sugar in the past. When you take insulin it ALSO has a lag, as long as 30 to 90 minutes. Managing Type 1 diabetes is like controlling the Mars Rover. Source: Type 1 for 20 years on a pump and CGM Details: http://www.hanselman.com/blog/ItsWAYTooEarlyToCallThisInsulinPumpAnArtificialPancreas.aspx http://www.hanselman.com/blog/ItsWAYTooEarlyToCallThisInsuli...