Why is there no point, there is point, I wrote to you before the scene of the main idiot's appearance, they discuss the photo and suddenly realize that the main idiot can remember something, so they play ahead, as they themselves said, what's the point, well, to make it even easier to follow the main idiot, he kind of proved that he is an idiot, now he is completely in their hands, you ask why they didn't do this at the beginning, well the main character is an idiot, apparently the whole family suffers from this trait
What if this so called main idiot is really playing them??
After all I recall one of them saying something like, he's skills at be able at solving & being able to plan things so far ahead very quickly was supposedly becoming 10x more advanced than what they were & that if compared to others, Sherlock Holmes & few others (can't remember their names) would have to look for new jobs & that his was the only complement that the sister who which again was the one said this, (or at least somewhere along the lines, not word per word) had ever given towards him..
With that said, couldn't that mean thats it's really been him who's been playing them, slowly but surely this whole time, as he proceeds to play the real idiots who think that they're still playing the "idiot" who's just playing the role!?
Like for example; couldn't he have played sara by setting her up knowing that he was bugged during that recording (but probably just didn't know eaxactly from whom or did, or just had a hunch from where who it is that they may work for his mom & older sister) & chose to perhaps say those things or right things from after asking Dr. Hyde the question about that hyperbolic frozen time chamber thingy or whatever), & from his own old natural instinct having just kicked in a little bit of him knowing the way that which sara would react (from her haven been so inseparably close) to him making seem as though he was still going to follow thru with his plan of eliminating himself from the picture from by either him leaving or freezing himself, in order to get her to give him the reaction & information that he wanted or just maybe only needed from his mom & sister..
& remember, all of this is from out of my own separate speculation (just like everyone else's) of what I can gather from the story thus far. Since we all clearly & definitively don't know the answer to all of our own speculations just yet, from the obvious fact of the story still not may for all we know, be even close to being finish..