What is the most crucial element to establish when attempting to build consensus on a Wikipedia talk page, even if other editors initially disagree with your proposed changes?

The most crucial element to establish when attempting to build consensus on a Wikipedia talk page, even if other editors initially disagree with your proposed changes, is that your proposed changes are *supported by reliable sources and align with Wikipedia's core policies, particularly the policy on verifiability. Consensus on Wikipedia is not simply a matter of majority vote; it's about finding common ground based on the strength of evidence and adherence to established guidelines. Even if other editors initially disagree, presenting well-sourced information and clearly demonstrating how your changes improve the article in accordance with Wikipedia's policies can sway opinions and ultimately lead to consensus. This involves providing specific citations to reliable sources, explaining how the sources support your proposed changes, and addressing any concerns raised by other editors in a respectful and constructive manner. Demonstrating a commitment to Wikipedia's core principles is more persuasive than simply asserting your own opinion or preferences.