11.   Even making the most optimistic assumptions, Zeldovich still could not make the predicted cosmological constant to come out to be less than a billion times the observed limit.

12.   If CBO adopts more optimistic economic assumptions, money would be freed to reduce the size of savings from Medicare and Medicaid.

13.   In good times bankers vie to make loans, and are sometimes willing to use overly optimistic assumptions to justify those loans both to management and to regulators.

14.   In the past, overreliance on optimistic assumptions has forced the state to slash spending at midyear, when reality sets in.

15.   Investors are starting to worry that earnings estimates for the brokerage sector were built on optimistic assumptions about a nonstop bull market for new issues.

16.   Last year, congressional Republicans said the administration was using unrealistically optimistic assumptions as a way of minimizing the scale of spending cuts needed to eliminate the deficit.

17.   Of course, the success of the theater and, by extension, of Hollywood and Highland itself, is predicated on a number of optimistic assumptions.

18.   Part of the problem is the optimistic assumptions that analysts built into their valuations.

19.   Republican leaders have complained that the White House has exaggerated the differences between the two sides on Medicare by basing estimates on more optimistic economic assumptions.

20.   That optimistic assumption is challenged by some economists.