How We Lose Our Grip On Reality

After learning how to SCUBA dive while in high school years ago, my friends and I did most of our diving from the beach. The geography was fairly simple; from the beach the bottom had a gentle slope until reaching the (non-coral) reef of interest at a depth of around 30 feet a couple hundred yards offshore. Water visibility was typically 15 to 25 feet offshore, but could be less than five feet in the surf zone. After moving as fast as possible through the surf zone, we would regroup, sink to the bottom, and rely on our compass, backed up by our depth gauge, to find the most direct path (perpendicular to the beach) to our destination. Our depth gauge was supported by physical clues of our depth, like light intensity and even the spectrum of colors available.

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Of course light intensity drops steadily as one goes deeper, but also the colors disappear with depth, starting with the longer wavelengths (red)A.
 At the end of the dive we would return straight to the surface, which would put us still a few hundred yards from the beach.  We would inflate our life vests, as they were called back then,
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They are now known as BCDs.D.
roll over on our backs, and leisurely swim back to the beach as we caught our breath. It was quite common on this return trip to look back past your fins and either see the beach behind you, or see one of your friends swimming out to sea.

But you don’t need to be a diver to see how poorly we maintain a straight and narrow path.

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Any resemblance to Matthew 7:13 & 14D is purely coincidental. 😉
To do your own experiment, start in the middle of a large field, put a blindfold on and walk in a “straight” line, dropping numbered markers or flags or let out a rope as you walk (the last time I heard of anyone relying on the bread crumb trick, it didn’t turn out wellA.)  You should be able to take the blindfold off in less than a minute, look back at your path, and be happy nobody was watching.  The moral of this story is that without regular “reality checks”, one won’t be taking the shortest path to your destination, and probably shouldn’t expect to get there at all.  And so it is with life.

How To Maintain Your Grip On Reality

Make regular observations

Every nautical chart will tell you that “The prudent mariner will not rely solely on any single aid to navigation …”, which clearly means the same as that seventeenth-century proverb “Don’t put all of your eggs in one basket”. Failing to make regular observations is the simplest way to lose touch with reality.

Verify all information – “Google, don’t gossip”

If you don’t know the position or the reliability of the source, you can’t depend on it to find or even describe your own position.

Apply the same standards to all information

Don’t get all of your news from one source. Expect all sources to have some bias (that may not be clear). Politically, this means that you should not get more than 30% of your information from Rush Limbaugh or any lesser-known celebrity (regardless of political affiliation). Your sources should come from all around your horizon,

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Landmarks that are near each other may have similar positional biases, which will translate into errors in your own position estimate because using them will cause the errors to accumulate and negate any averaging or cancelling effect that you were hoping to get from independent sources.
and you should not treat the information that comes from one side of your vessel different from the information on the other side. Again, politically, you can’t demand higher standards from the other candidates than you expect from your favorite. This just exposes you as a bigot looking for excuses.

Don’t Throw Out Information Just Because It’s Unexpected Or Inconvenient

I’ve already discussed this in “How Large Is Your Universe”.  If you are doing this, stop calling yourself a scientist and expect others to call you a bigot. We’ve all seen bosses who surround themselves with sycophantsD (ass kissers) and ultimately drive their Rolls-Royce off Reality Road into a ditch (Not surprisingly, none of their entourageD helps pull them out.)  When scientists, whose job it is to describe reality, run across information that doesn’t support their theory they are forced to change their theory.  Of course there are the occasional outliers,

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For a simple explanation of outliers, see the “Math Is Fun” website. The last paragraph of the National Institute of Standards and Technology (N.I.S.T.) website discusses how to handle outliers.
which need to be handled carefully.  One clue to how far you’ve wandered from reality is the number of outliers you have to throw away.

And that is pretty much it.  It is simple enough, but requires constant effort.  If you think I left anything out, let me know.  Other comments are welcome and appreciated.  Now go apply this to your life.  Thanks for listening.

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An old fictitious liberal of unknown race, gender, size, and sexual orientation that believes in both God and science and is not the least bit intimidated by numbers. Based on that description, you shouldn't rule out the possibility that we could be a composite character.