Asked this question many times before, on different sites as well, but i still haven't gotten a good answer for some reason. Some will say one thing, others another, some won't really give me a direct answer at all. Probably going to get downvoted but what the heck.
We all know that if you shoot a single particle at the slits, the probability distribution that you will find on the screen after multiple trials will be that associated with a wave-like entity (interference pattern). However, if you decide to measure which slit the particle goes through, the probability distribution pattern that emerges will change, it will be a pattern consistent with a particle-like entity (the "particle" is most likely to be detected directly behind the slits and the probability will taper off everywhere else). My question is this, what pattern, "wave" or "particle", will emerge if we decide to take a measurement before it goes through the slits?