The Range of Speculations is decreasing with time.
Unless the Real End Value is going to match the best case scenario — the top of the Range of Speculations — then speculative value as a whole in decreasing with time too.
There are only two ways to deter this effect:
Increase the Range of Speculations. New highs or new lows, as long as they expand the relevant space, the value of the speculations expands as well.
Move the Real End Value. Don’t assume this is fixed; moving the goal-posts is the best way to expand the space. Tomorrow is never observable so time becomes an unreliable variable.
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