I'm not sure about evolution not being proven - there is a huge scientific consensus supporting it, and the time-lapse photography you mention could take the form of fossils as solid evidence. Scientists have fitted these together and formed a pattern.
And I think unless you close your mind around some things, you're in danger of not truly focusing like you should - in this case, if a man has an open mind about what might be after death, he might be more likely to give up living (and start hoping) than a man who knows irrefutably that death is the final, absolute end for you in any form of existence whatsoever.
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