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Operation: Tabula Rasa

March 29th, 2007 by Wayne Porter

My inbox has been filling up with questions…Questions of all kinds after my last enigmatic post. I can assure you there is a flurry of activity going on behind the scenes as we prepare for Operation: Tabula Rasa.

Tabula rasa, which is Latin for scraped tablet or clean slate, refers to the epistemological thesis that individual human beings are born with no innate or built-in mental content, in a word, “blank”, and that their entire resource of knowledge is built up gradually from their experiences and sensory perceptions of the outside world.

Proponents of tabula rasa favor “nurture” in the nature versus nurture debate. Coming from a medical background I like the concept of “nuture”.

Moving on to Computer Models

In computer science, tabula rasa refers to the development of autonomous agents which are provided with a mechanism to reason and plan toward their goal, but no “built-in” knowledge-base of their environment. They are thus truly a “blank slate”.

In reality autonomous agents are provided with an initial data-set or knowledge-base, but this should not be immutable or it will hamper autonomy and heuristic ability. Even if the data-set is empty, it can usually be argued that there is an in-built bias in the reasoning and planning mechanisms. Either intentionally or unintentionally placed there by the human designer, it thus negates the true spirit of tabula rasa.

Alignment for the Winds

With those little tidbits, and there are more, I ask that everyone be patient during this brief transition period. It is one of the more difficult set of acrobatics performed by Revenews and collaborators. With an overall goal of inclusion, dynamic movement, and ultimately an alignment where the winds of change are against all of our backs instead of having to brace for them or worse- fight against them.

With the winds of change behind a boat- a boat will move forward far faster and with less effort. The striking out of my text is a good example of the winds of change, thinking beta, feedback, communication and learning. Without the advice of an experienced hand it is easy to make faulty analogies, assumptions, conclusions or stay “status quo”.

I would be remiss not to add this per Pat Grady and his comments. I am not a sailor, but the logic makes sense.

sailing faster ~40 degrees into the wind is a result of higher relative wind speed then making the most of lift that results from the winglike shape of the sail. in this way, in smaller boats (and windsurfboards), it’s easy to go much faster than the speed of the wind. i’ve gone ~27 knots into a ~20 knot wind before. downwind, with drag and all, you could go roughly 14 knots top speed. so 27 / 14 means you can go nearly twice as fast into the wind, than with it. sailboats will tac into the wind, alternating 40 degrees into either side of the headwind - so you’re not sailing face into it, but offset from it some.

see here for more:
http://www.physclips.unsw.edu.au/jw/sailing.html

back to the ‘with the winds of change at your back’ analogy…

facing changes head on will get you through them twice as fast. and wayne, everyone who follows your work knows you’re that kind of person. so your analogy needed a sailor’s tweak, that’s all - it’s still true.

Logically the chances of discovering new land are greatly increased…provided you have the right boat and the right sails.

While waiting you may check into- Empiricism and for more reading try some research into John Locke’s (1632-1704) An Essay Concerning Human Understanding written in 1689…

So stand by and keep your thoughts in Beta- and we will take the winds of change no matter what direction they may come.

Changes Made: 03.30.07

7 Comments

Jeff Perren said:

Anyone who uses the word “epistemelogical” in a post gets a big vote from this ex-Philosophy major.

Intrigued…

Jeff

Pat Grady said:

wayne, just so you know, boats actually sail faster into the wind…

and speaking of “sailing”…

riddle for later… as a navy man, i can attest that a ship’s captain never sends anything but crytal clear and obvious orders and information to his followers. so, when is the one ocassion when a ship’s captain will get enigmatic and show any uncertainty with his crew?

Wayne Porter said:

Hi Pat,

“wayne, just so you know, boats actually sail faster into the wind…”

Very cool to know- why is that? This a function of Conservation of momentum?

“and speaking of “sailing”…

riddle for later… as a navy man, i can attest that a ship’s captain never sends anything but crytal clear and obvious orders and information to his followers. so, when is the one ocassion when a ship’s captain will get enigmatic and show any uncertainty with his crew?”

The captain shouldn’t in my opinion. He should give clear orders and go down with his ship in my opinion. That is the call to duty? In what situation might that happen? When has had too much rum??

However, this is not the military, I am not the captain, no one is a follower, but people are participants and these posts are designed to get people to ponder a bit while things are done. You should not have to endure them much longer I am sure.

So in that spirit- I would ask- as a navy man- “which navy did you sail under”? or do I assume all navies react and have the same rules?

Thanks for the cool riddle and knowledge about winds. If we catch up at a conference I look forward to getting schooled.

The rework is underway, and it is a gargantuan task. Approaching Beta orbit very soon.

Pat Grady said:

sailing faster ~40 degrees into the wind is a result of higher relative wind speed then making the most of lift that results from the winglike shape of the sail. in this way, in smaller boats (and windsurfboards), it’s easy to go much faster than the speed of the wind. i’ve gone ~27 knots into a ~20 knot wind before. downwind, with drag and all, you could go roughly 14 knots top speed. so 27 / 14 means you can go nearly twice as fast into the wind, than with it. sailboats will tac into the wind, alternating 40 degrees into either side of the headwind - so you’re not sailing face into it, but offset from it some.

see here for more:
http://www.physclips.unsw.edu.au/jw/sailing.html

back to the ‘with the winds of change at your back’ analogy…

facing changes head on will get you through them twice as fast. and wayne, everyone who follows your work knows you’re that kind of person. so your analogy needed a sailor’s tweak, that’s all - it’s still true.

i look forward to seeing what emerges on the other side of your current changes.

Wayne Porter said:

So noted pat! See if the additions make better sense… thanks for the nice words, thought and input.

-wayne

Pat Grady said:

“so, when is the one ocassion when a ship’s captain will get enigmatic and show any uncertainty with his crew?”

answer, right before the change of command ceremony. :-)
congrats to you wayne on your changes and new path chosen.

Wayne Porter said:

Oh that is good! Very good. Remind me to sail with you anytime.

I thought April 1st was a great touch…thanks Pat- very excited for everyone actually- we are really going to try to go in some unexpected ways…jump start our minds. You already have. :) Next I’ll be walking the plank…

best,
Wayne

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