It's only creepy if you believe you're the only consumer. Say when others watch that video, they search for "battle of whatever-you're-talking-about". They do

It's only creepy if you believe you're the only consumer. Say when others watch that video, they search for "battle of whatever-you're-talking-about". They do the hard work. As for you watching a video and autocomplete coming in with the same topic, could it be that there was a surge of interest of that battle at the time? Otherwise it may be url analysis from other people searching through chrome.