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Plugin "Free Will Choice" for Hal 6
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' REQUIREMENTS:		This plugin requires Hal 6.0 (currently in RC2)
' PURPOSE:		To give Hal a Free Will ability, allowing him to choose between two different choices
' HOW TO INSTALL IT: 	As any Hal 6 plugin, you must simply copy it in the Hal 6 working directory
'			and then select General Options - Brain - then mark the "Free Will Choice" checkbox			
' HOW TO USE IT:	Type in Hal6 a question similar to the following (where COLOR, RED, BLUE are just examples):
'			Which is your favorite color : red or blue ?
'			What color is better : red or blue ?
'			Which color is better : red or blue ?
'			What color do you prefer : red or blue ?
'			Select a color : red or blue ?
'			Pick a color : red or blue ?
'			Choose a color : red or blue ?
' CURRENT FEATURES:	1. Hal creates a new table for each subject (i.e. color).
'			2. All the different choices are made randonly the first time and stored in the corresponding table
'			3. When an already rated choice is asked, Hal always uses the same rating factor, so his answers
'			   are always consistent
' PLANNED FEATURES:	In some next release, I plan to address the following issues:
'			a. More flexible structure of the question
'			b. Possibility to use more than 2 options for each question
'			c. Ability to understand "absurd" questions: for example if you ask which is favorite between red and rock, 
'			   Hal might be able to tell you that you can't compare a color with a music.
'			d. Option to "convince" Hal that his choice is wrong: for example every time you say "No, you are wrong", 
'			   Hal might decrement of 1 the higher value and increment the lower value, so that, after some time,
'			   he finally "changes his mind". 
'			e. Ability to store subjects and choices made up of more than one word
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