Anthony Flew isn’t a scientist; he is a highly respected philosopher. Fine, deism might be possible, it can’t be tested, but I see absolutely no reason to believe in a benevolent God.
IF you accept the possibility of deism, does it not make you wonder what will happen the moments after your death, how you will confront your Creator ???
You do not accept God in life, can you really expect that He will accept you in death ?
Discarding the secular relativism and those who believe that just about any faith will do, the Bible tells us that those who reject Jesus are condemned by their very rejection of the Son of God.
It may be that your actions in life do not merit eternal damnation, but at the very least, you could have avoided some extensive time in Purgatory by doing some penance and mitigating actions during your time on earth. It doesn’t take much to build a few indulgences, but it can save you a world of pain and suffering in the hereafter, and there is a hereafter.
From our viewpoint we have seen a boatload of evidence to believe as we do, saints, miracles, personal experiences, gut feeling etc. While you ignore everyone elses beliefs and experiences, your admission of the possibility of hereafter should lead you to examine if there are indeed any benefits to such a belief and weigh these against any downside risks to non-belief.
It appears to us the downside to non-belief is very considerable (if not infinitely bad -ie eternal damnation), while the downside to belief is very minimal (we may be wasting our time and energy). While the upside to belief is quite considerable (with an infinitely good upside - ie Heaven), I really see zero upside to non-belief, but you are welcome to point that out to us.
In a cost benefit analysis, I think non-believers really come out way out on the short end of the stick, while believers have a huge up side gain versus minimal downside loss. I wish I had these types of odds and risk vs rewards in AC or Las Vegas. In the lottery of life being a believer has a huge payoff but much better odds. We think its a whole lot better than 50-50 that we’re right.