- It depends on the previous sentences. Probably? I can't be sure though.
- "Dire consequences" is perfect
- Yes, this is nice.
- Not exactly (please note that you also need a subject if you have a verb in a "whether" clause). I would use "either ... or ..." in this sentence.
The "whether" and "either" clauses are slightly different.
- Our subject either does action A or does action B. (In the evenings I either watch TV or read a book.)
- Our subject will do action C whether condition X or condition Y. (I'll go cycling tomorrow whether it's sunny or it's raining.)
- Our subject will be in condition Z whether it does action D or action E. (I'll have a good time whether I see a film or go to a concert.)
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