He's right, if it went 10x current btc value it would be about $20/ea.
0.00016667 * $4700 (current price BTC) + 65697.131 BCH (BTC raised) * $593.43 (current price BCH) / 607,563,784.594 XTZ (total Tezzies from ICO) = $0.85
It's a minimum price at wich investors do not lose their money (at moment).
I think we will not see XTZ cheaper 1 bucks.
This is very optimistic in my opinion.... The market price is not determined by the investors who are holding the XTZ... The price is determined by the buyers.
If XTZ won't show anything interesting or anything new or improved, the buyers won't be interested to pay anything extra and the ICO investors could be happy if they break even.. This is the same with most of the hyped ICOs such as BNT or BAT.