Hello, Shmj, you wrote: BFE>> the Described situation is not the proof. Your brain can deceive you rather artful methods. In particular, you could know all up to trifles, but forget that know also this knowledge to you could will be shown in the sleep, for example. S> And whence you could know, if were in this place never? Saw video shootings of this place, for example. BFE>> the Second method, for a change, the such: an instant later after you learned something to you can seem that you already knew it. Effect similar to effect of a deja vu. S> well and if wrote down in a notepad before? And if wrote down, would began to tell about other reality. BFE>> the third method, as from Henry Gustav Molisonom to whom Bill Skovill deleted a brain part. Henry could not remember anything new, but repeatedly repeated training led to that repeated training happened much easier. I.e. Henry of M. Did not remember that knew, but could to put, in some measure, this knowledge into practice. I think there are also other effects of the same row. S> but to you nobody deleted a brain part? Think Henry remembered, what to it deleted a brain part? BFE>> in general generally there is no such knowledge in which it is impossible to doubt. It is possible only for each of knowledge to attribute a certain level of reliability. And so, to knowledge based exceptional on memories on improbable things follows concerns carefully. S> a question at all in that how to concern and how such knowledge is called? It is called "says lies as the eyewitness". S> I think your excuses - type the brain knocks - the full nonsense. In vain so think. Whether segments on the given picture are equal:? S> If you know that at you problems with a brain - then, yes. If know - then all simply. S> but when never the brain brought - that of that to doubt? You never did corrigendas? Never forgot and did not confuse number? Did not forget house keys? You did not have stipulations? S> after all with the same success it is possible to doubt that that you correctly read judgements of scientists - suddenly the brain replaces one words with others. It happens pretty often. Here a vivid example when media to figure Puchkovu (known under an alias the Goblin) Evgenii Timonovoj is the extremely difficult to perceive words. S> And when speak think that tell one, and language says another, besides you do not know about it as the brain substitutes words. So happens. I watched it at two dialogues, short of individual stipulations when the person himself notes that told not that word. In the first the interlocutor in flow of ten minutes substituted a word "orthodox" for a word "Christian" opposing to its word "Catholic". I.e. stated that in Russia a faith Christian, and in the west - Catholic. And only after a question, ' and who such "orthodox"? ' the interlocutor realized the error. This example is not so indicative, as following: One my acquaintance in flow of talk to it substituted instead of a word "buyer" a word "seller" without noting it. Sentences were about such: "If the seller - the woman coming to shop it yet always knows that wants to buy and it should offer and show some goods. If the seller - the man, as a rule, he precisely knows that wants to buy, therefore he should ask, what exactly he would like to buy." And further in the same spirit. On a direct question, instead of whether it confuses the seller to the buyer the answer was - yes, confuses. S> well same marasmus. No, marasmus is an illness such. And the healthy brain "knocks" even.