You are completely dismissing the possibility of bias in the coin and/or a skilled flipper
Ben, I am not dismissing it. I merely you said you cannot arrive at that conclusion based on the 20 consecutive head’s alone. That is a random sequence of events, and that doesn’t establish the coin is biased or the flipper is able to influence the outcome.
You need other means to confirm that, for ex: an ordinary person flips and he is not able to reproduce 20 continuous heads, but the skilled one is able to reproduce that at will, or the side of head slightly has higher weight and any coin that has such difference in weight, producing 20 heads.
In other words, what you are saying is a speculation that requires additional facts to verify.