Advances here will inform the more scifi-ish imponderables like a space elevator, and asteroid- or moon-mining.

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Why quibble over share of market imponderables in smartphones, tablets and mini tablets?

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After that, a host of imponderables from emerging threats to economic conditions to political upheavals intrude to make any projections useless.

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Imponderables such as bad weather, a strengthening of the dollar or a politically inspired trade spat could send parts of the Farm Belt into the dumps.

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Still Sega has pulled this off before and after factoring out the imponderables like VM Labs and super-cheap PCs, it looks like it just might do it again.

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There are too many imponderables and too many unanswered questions.

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Just how great would be the adverse impact of such a development on intra-alliance relations is difficult to calculate with confidence at this point due to a number of imponderables.

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There are other imponderables to reckon with here.

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Once housing turned south, CMO investors came face-to-face with far more costly imponderables: how many mortgages would default, how much the underlying homes would fetch in foreclosure and whether the government would rewrite mortgage terms.

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