Earlier quoted context omitted.
>A prediction that "this will happen, some time in the future" is not very useful Yes it is, if taken seriously.
What does "taken seriously" mean? We don't even know that from a prediction that vague. If the prediction is "we can expect a serious epidemic once every 10 years", then we have something definite that we can plan for, or at least discuss the costs of planning for. There's no way to discuss the costs of planning for "this will happen, some time in the future" without more detail.
Which has largely happened in a lot of areas...
except for the people who think the correct response is to ignore any prediction that isn't perfectly specific?