People have sent 700 btc in a little over 24 hours. So why do you think they will not send 243 btc in the next 5 days?

Because the amount people will need to send in AFTER them will grow even larger than 243BTC.
You don't understand mathematics of ponzi games?
People last night said there was no way 80 BTC would be sent in. Everyone said Crypto double would not last a week. I think you would be supprised how much money people are willing to risk.