A system and method for algorithmic selection of a consensus from a collection of ideas is disclosed. A group of ideas is provided to a group of participants for voting. Voting may occur in a single round or in several successive rounds, optionally until a consensus idea is chosen. Typically, the votes that are cast use discrete levels, such as “approve”, “disapprove”, “positive”, “neutral” or “negative”. For ideas that receive the same votes, a differentiator may be the time spent casting the vote. A relatively long evaluation time may signal some internal conflict in the mind of the participant, when compared with a relatively short evaluation time, which may signal no such conflict. The evaluation time may be combined with the rating of the participant to form a weighted rating. Consequently, a short evaluation time of a positive rating may yield a more positive weighted rating, while a short evaluation time of a negative rating may yield a more negative weighted rating.