Bernhard Dippold wrote:
I didn't think, that it would be necessary, but if you want to, you may do so.

Your vote will be split into partial votes, so your vote stays as important as the voting of everybody else.

Uhmm... no, that's not "approval voting". If you are going to use "fist past the post" then please give my entire vote to B.

Next time I strongly suggest "approval voting". That is, people get to give a +1 to as many choices as they want. This is, arguably, the best voting system invented. It is very "fair" and mostly devoid of strategy.

To illustrate the problem with splitting my vote 0.5/0.5, suppose we have three choices: A, B, C. Suppose that 60% of the people prefer A or B, and 40% prefer C (this can happen, for example, if A and B are very similar). If you split people's votes the way you were going to split mine then C would win even though 60% of the people like it the *least*.

Voting systems is a whole field of mathematics, and an area of active research. The systems that gives the most fair results are from the Condorcet family, but these are complicated to carry out (you need a computer). After Condorcet, the best system is Approval voting. Approval is trivially easy to carry out, and has almost all the benefits you could want.

So I count your voting as

 + 0.5 for A
and
 + 0.5 for B

As I said above, please don't, that's not fair. Since you've chosen the "first past the post" please give my entire vote to B.

BTW, "first past the post" is the name of the "usual" method where each person gets to assign one point to only one choice. It is the simplest, but also one of the worst in terms of fairness. Though it's, of course, the most common. First past the post suffers from split votes. I'll give an example. Say we have 3 choices, A, B, C. Say that A and B are very similar, and 60% of the people like the style of A and B, it would be "fair" that either A or B win; but what is likely to happen is that C will win, although most people don't like it.

An attempt to solve this is to assign "points", so people might say +2 for A, +1 for B and +0 for C. But this suffers from the opposite problem, it's called "teaming". Suppose that A and B are very similar. Suppose that only 30% of the people like A and B. Clearly it would be unfair if A or B wins, but with this point system, one of them will. This may not be intuitive, but this point system is also very unfair.

Approval voting doesn't have either of the above problems. It is very very fair.

I should mention that it is not perfect. There is an interesting theorem that says that it is not possible to make a perfectly fair voting system. :) One very interesting discovery of the 20th century.

Cheers,
Daniel.
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    /\/_/
   /\/_/ I'm not saying there should be a capital punishment for
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   /     off of everything and let the problem solve itslef?

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