"What is consensus?" is one of dozens of essays about consensus on Wikipedia. It supplements and explains Wikipedia's official policy on the subject, and implores editors to aim toward writing content agreeable to all. This may not always be possible, but by considering the opinions of all participating, it provides a framework to move forward.
The essay reminds editors that consensus is not a majority vote and rarely takes the form of a simple yes-or-no poll. Discussion and compromises are encouraged. Consensus does not require unanimity or an "all or nothing" agreement, and solutions may change over time.
"What is consensus?" also says that consensus is not always acceptable and cannot go against policies or guidelines. Editors cannot game the system by cherry picking discussion participants or ignoring past discussions with dissenting views.