In the absence of comprehensive data and unbiased sampling, however, it may be impossible to select a priori the appropriate defining properties [8].
However, when this area was first visited, by Mariner 10, this zero meridian was in darkness, so it was impossible to select a feature on the surface to define the exact position of the meridian.
Lack of data for strong accelerations in the region make it impossible to select attenuation relationships on the basis of local accelerographic registers.
Second, it was impossible to select control sites beyond the district boundaries and to be sure that these control sites would not be affected by another maternal and neonatal health program in the very near future, making it impossible for us to attribute causal effects.
Even though choosing a non-indigenous area in the Central Highlands made it impossible to select a Type 4 community in Michoacán, the benefits of representativeness that the region provided, along with the fact that my selection strategy aimed to reflect the actual distribution of vertical integration types in the state, outweighed the costs of a less balanced research design (Fig. 2).
Figure 1 perfectly illustrates this point by clearly demonstrating that it would be impossible to select a best curve among the 10 shown.
This is such an extraordinary time for television content that it is often near impossible to select only six nominees in each category, the maximum number allowed in the Emmy nomination process.
It's impossible to select a ramen joint from such a formidable selection, so just take the recommendation of Daikokuya with the underlying presumption that they're giving the humble, bewildered "honor to even be nominated alongside you all" acceptance speech of a young Oscar winner.
Arguably, it would be difficult or even impossible to select most exciting segments prior to 'seeing' the game as a whole, hence this assumption seems quite reasonable.
