That is a wake up call from the co founder of ETH, no one should invest his/her saving in cryptocurrencies and again invest only what you can afford to loose because the cryptocurrency market is very volatile and at that it is unpredictable any thing can happen but in at that taking the risk some times pays off.
A real wake up call and I am happy it is coming from someone like him, knowing the impact he has played in the cryptocurrency space. If there is even anything most investors should know is never to go all in or attempt something they cannot afford to lose.
Life generally is full of risks and no one can ascertain what the future holds with the same principle applying to cryptocurrencies. Most people really do not want to play along with the rule of life, but would rather decide to let their greed impulse take over them, which is where the problem starts.