Yeah, that's right. It is impossible to predict and I think Bitcoin will not go down and reach zero bottoms. The primary reason that all business industries had down and close at this moment just because of the pandemic coronavirus that causes to have a global economic crisis. Once it will be done and the pandemic will totally wipeout everything back to normal.

I tend to agree with the OP, never full back all your assets either real stock or crypto at a time. But as much as possible hold your Bitcoin right at this moment, this isn't good to convert fiat when the price down. But if there are no other resources and you urgently need to buy food and other necessities, that 's the time to pull back half of your crypto asset. Don't lose hope at this time, we still keep fighting from this root of economic crisis.