I have read many so-called feasibility studies and they were all written by people who lacked even a 7th grade knowledge of science, people who deliberately and willfully chose to ignore what they learned in the seventh grade, or by people who deliberately and willfully wrote to deceive their readers in order to defend their archaic, naïve, and irresponsible interpretation of Genesis 6-8.
The site for which you provided a link makes a horribly irresponsible mockery of Bible, Biblical hermeneutics, the Christian faith, basic science, and the man that God created in His own imagetherefore making a mockery of God Himself! Filling in the gaps in Genesis 6-8 with thousands upon thousands of totally imaginary miracles that diametrically contradict the laws of nature that God Himself set into place rather than fill in the gaps with millions of pages of irrefutable scientific data and the basic common given to us by God is most certainly the travesty of travesties! Most certainly those persons who use the internet to deliberately and willfully propagate such distortions of the reality Gods creation shall answer to God for their sin!
I can not possibly express in words how very important it is for each and every Christian believer to, everyday, earnestly and honestly beseech God to teach him His truths and to protect him from error of all kinds.