Or it might be fatal. You don't know that. What we do know is the general construction of a sub, which is that of an "egg". It's built to withstand extreme glob

Or it might be fatal. You don't know that. What we do know is the general construction of a sub, which is that of an "egg". It's built to withstand extreme global pressure (pressure from all sides at once, like water does). But as I'm sure you've noticed, eggs don't hold up very well against needles.