A private thought changes character when its first destination is an audience.

A thought changes when it is formed with an audience in mind. It gets shaped for reception, made shareable, and slightly performed even before it is finished, and the version you end up believing is the version that would land well rather than the one you actually arrived at.

Keep some thinking that has no destination. A notebook nobody reads, a walk with no notes taken. You will find that some of what you think in private does not survive contact with an imagined audience, and that is worth knowing about your own opinions.