Discharge of the magnetic energy

I wonder how the DI were discharging the buildup of the magnetic energy before they built the Swan and installed the button. I also wonder how they figured out that it had to be pushed\degaussed every 108 minutes before it imploded. If it were for real, you would think that scientists would give themselves some breathing room and would schedule the button to be pushed at least every 90 minutes or sooner when writing the computer programming. What are your thoughts of this and my over analyzing everything that seems impractical in the show? Sarcastic smart-ass comments are unwelcome but this is a free site so just try to stay to the point is all I ask.

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