“I’m going to die” and “I’m going to live” are ‘half-truths’.
Glass half-full and/or half-empty is another.

Each of the above are true. Technically speaking. But also incomplete. Hence “half”-true.
True, as in factual, but only half-true because each of the above are ‘incomplete’. Waiting!

‘I’m going to die’ makes absolutely no sense. Of course ‘I’m going to die’… Every individual ever born was meant to die from the first moment of their lives!
‘I’m going to live’ also makes very little sense. For as long as anybody is able to mutter a few words, that individual is going to live for a while. For a few seconds, at least…

Same thing with the glass. It being half-full or half-empty depends on the evaluation made by an interested party. Interested enough to make the evaluation…