If a card you play deals you damage and that damage reduces you to 0 or fewer hp, do you finish the text on the card or are you instantly incapacitated? For instance, if you are absolute zero and you play modular realignment "Select 1 Equipment card from your trash and put it either into your hand or into play. Absolute Zero deals himself 1 Fire Damage and 1 Cold Damage." at 1 hp, when you take the one fire damage, do you finish the card and regain an hp from the cold damage, assuming you have the Null-Point Calibration Unit out, or would you be incapacitated?
You take the damage, you are now at 0 or less HP, and you flip your character card. If your hero becomes incapitated any remaining card text is not done.
Unless, of course, Fixed Point is out, in which case you're fine as long as you're above 0hp when it goes away ;).