The present is the future of the past and the past of the future. Messing with the present will make you long for the past and fear the future.

Living in the past will mess up the future. Living in the future will make you miss out on the present.

Too much past tense make you sound like a whiner. Too much future tense makes you sound wistful. Too much present tense means you have to see a masseuse.

Right, I hope this cleared the matter up for you all.
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Extraordinary claims require extraordinary evidence - Carl Sagan