Sentence examples for this is a serious difficulty from inspiring English sources

About the reference class, Reichenbach says only "I do not think this is a serious difficulty as the same question occurs for the determination of the probability of single events" and recommends the choice of the narrowest reference class for which there are adequate statistics (though how the adequacy of a statistic for the truth or falsity of theories is assessed is never explained).

And the fact that we don't behave anything close to perfectly is a serious difficulty".

For the libertarian, therefore, there is a serious difficulty in giving a plausible account of the mechanism or source of responsibility.

At the end of our discussion in section 1 above we saw that there is a serious difficulty in understanding what Kant intends here—a difficulty to which he himself explicitly calls attention.

From our perspective it would be a serious difficulty for Northern Ireland.

While the number of parameters is a serious concern, the difficulty in identifying the thresholds is perhaps the most significant problem.

XCOM 2 is a serious strategy game, even on normal difficulty.

However, increasing therapeutic difficulty caused by resistance is a serious concern (6 – 9 ).

"I think the difficulty one has - which is a serious problem - is the question of belief.

One gets the clear impression that Kelsen was aware of a serious difficulty in his position.

"This is a time when they will often have serious difficulties engaging, initiating projects and following through".