# Opinion | Ditch the GPS. It’s ruining your brain. - WP

**URL:** <https://forum.gcaptain.com/t/opinion-ditch-the-gps-it-s-ruining-your-brain-wp/51751>\
**Category:** Professional Mariner Forum\
**Created:** [June 8, 2019, 2:13am UTC](https://forum.gcaptain.com/t/opinion-ditch-the-gps-it-s-ruining-your-brain-wp/51751 "2019-06-08T02:13:24Z")\
**Posts on this page:** 1\
**Showing post:** 26

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**Author:** ![Kennebec\_Captain](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.gcaptain.com/kennebec_captain/32/13_2.png) [@Kennebec\_Captain](https://forum.gcaptain.com/u/Kennebec_Captain)\
**Post date:** [July 4, 2019, 2:00pm UTC](https://forum.gcaptain.com/t/opinion-ditch-the-gps-it-s-ruining-your-brain-wp/51751/26 "2019-07-04T14:00:15Z")

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> [@Klaveness](#):
>
> it’s an interesting example of navigational methods that seem completely off the wall to your average mariner, but work just fine.

I just came across this word: [Consilience](https://en.wikipedia.org/wiki/Consilience)

> In [science](https://en.wikipedia.org/wiki/Science) and [history](https://en.wikipedia.org/wiki/History), **consilience** (also **convergence of evidence** or **concordance of evidence** ) is the principle that [evidence](https://en.wikipedia.org/wiki/Evidence) from independent, unrelated sources can “converge” on strong conclusions. That is, when multiple sources of evidence are in agreement, the conclusion can be very strong even when none of the individual sources of evidence is significantly so on its own.

When we think in terms of standard navigation practices we think in terms of the "cross-check. That is to use another standard but independent method, for example visual bearings and radar ranges. These sources are “related”.

But if the search for information is broadened, looking for “convergence of evidence”, then information might be available from meteorology: [If the GPS Fails I’m Riding the Isobars Home](https://forum.gcaptain.com/t/if-the-gps-fails-im-riding-the-isobars-home/51962) or the things learned from the fisherman: [We don’t need no stinking compass](https://forum.gcaptain.com/t/we-dont-need-no-stinking-compass/46988)

These sources are unrelated, less obvious.

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