Magnetic shielding can also interfere with too many other key systems.

The problem with supplies is: What do you use for shielding when you're nearing the end of your supplies?

The ISS has a much for heavily shielded (and much smaller) room for use during solar flares.

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WIKIPEDIA and GOOGLE are your friends! But only if you use them.

Perception isn't reality. It's merely an abstraction thereof, and quite often, not a very good one at that.

Perception is what happens between the senses and consciousness. Reality is what happened before that. If you think the two are equivalent, you've never heard of Von Claustwicz, Sun Tsu, or street magicians.

Formal Logical Fallacy List