No, I did it right. Pity you cannot see that. Just shows you are a rote learner.<quoted text>
You can blabber all you want but you still did it wrong. Stop making excuses and learn to use the big boy formulas. It's not that difficult. If you simply divide time into smaller portions all you wind up with is equal parts of the whole. Half life doesn't work like that. Grow a set.
How many halvings over 65m years? 124,700 if halving every 521 years.
So how much material left? 1/2^124,760. In other words nothing, even if the sample size was massive.
Don't even comprehend how you can maintain your silliness on this, but doubly amused that my conclusion agrees with you that if the half life is 521 years, there could not be any intact DNA after 65 million.
So why are you being an idiot?