I know it for the same reason I know unicorns and leprechauns don't exist - there is no credible evidence supporting it.
Ignore and refuse to participate in wild speculation until evidence appears. That's how we have to operate, lest we succumb to every conspiratorial fantasy the Internet can come up with.
Ignore and refuse to participate in wild speculation until evidence appears. That's how we have to operate, lest we succumb to every conspiratorial fantasy the Internet can come up with.