"Yi Yuan······ Corridors, yards, bedrooms, study rooms, thatched houses, firewood rooms······ Pavilions, floors, grass, desks, wardrobes, beds······ Teapots, bluestone slabs, branches, stationery, clothes, quilts, ······"

Xu Yi built his memory palace in his mind little by little, from large to small, level by level, until he built everything he could see and think of with his eyes.

The so-called memory palace does not really ask you to build a palace, the word 'palace' is just a metaphor, in fact it can be anything, as long as you are familiar enough with this thing, you can build it one to one.

Of course, it's okay to be unfamiliar, or even completely fictional, but relatively speaking, the memory palace built in this way will be very difficult and quite vain, nothing more.

Generally speaking, in order to reduce the difficulty, the vast majority of people who build memory palaces will choose the building they are most familiar with - such as the room they live in.

Even the most ordinary, ordinary rooms can be built into memory palaces, as long as you can build this 'palace' in its entirety, and then complete the classification of them.

Such as the main (first-class) palace, the secondary (second-class) palace, the third-level palace, the fourth-level palace······

If you think of your room as the main palace, then the bed, desk, wardrobe, shoe closet, window, etc. in your room can be regarded as a secondary palace, and then your quilts and pillows, drawers and tabletops, upper and lower wardrobes, upper and lower shoe cabinets, curtains and windows, etc., can be used as a third-level palace.

Then it can be further refined, for example, the wallet in the drawer can be a fourth-level palace, the hundred-yuan bill in the wallet can be a fifth-level palace, the Great Hall of the People in the hundred-yuan bill can be a sixth-level palace, the door in the Great Hall of the People can be a seventh-level palace, and the flower carving on the gate······

As long as your thinking is strong enough, it can even extend infinitely, and it is said that Sherlock in "Sherlock" has directly deduced his memory palace to the ninth level! It can be called a pervert among metamorphoses!

Every time the memory palace goes to the next level, the difficulty of building is exponentially doubled, and normal people can reach up to level six, or even level five, and those who can build a seventh-level memory palace can already be called a genius.

Eighth-level memory palace, that's something that only a very small number of human beings can do with perverts and demons!

Ninth-level memory palace, that's really a pervert of metamorphosis!

(PS: If you are interested, you can try to play it yourself.) The author has tried to construct, what can be said about that feeling······ It's new and interesting! It's just that I didn't have the perseverance to build it in the end, which is a bit of a pity. ）

Of course, just try to build a four- or five-level memory palace, the deep memory palace is said to be at risk of getting lost, in "Detective Sherlock", Sherlock has been lost in his memory palace many times, and he can't even distinguish between reality and memory.

This is mainly because the palace he built is too deep and too similar to the real world!

In the TV series, there have been many scenes of Sherlock exploring the entire city in his memory palace, if it is only detailed to each block, but Sherlock is not, he even remembers every store in the block, what is the name of each store, and even the small words on the light signs of each store!

It can be said that the 'City of London' he constructed is almost indistinguishable from the real City of London.

In such a memory palace, it is not incomprehensible that you will lose yourself and be unable to distinguish between reality and memory.

Sherlock was able to move the entire city of London into his memory palace, and the power of the memory palace did not need to be described too much.

It's just that normal people are limited to their own thinking ability, and it is basically impossible to be as perverted as Sherlock.

With the assistance of eight times the normal state, Xu Yi can also be regarded as a pervert level among normal humans, not weaker than Sherlock.

However, he didn't directly build a ninth-level memory palace, because he was worried that he might get lost in the memory palace, he cut the built memory palace by one level and made an eighth-level memory palace.

To be more specific, it's pretty much like this.

Yi courtyard - yard - big tree - branches - branches - leaves - lines - fine lines.

Yiyuan is the main (first-level) palace, and the fine lines in the leaf lines on the last big tree are eighth-level palaces.

It is said to be as true as possible, but Xu Yi can't observe all the fine lines in the leaf lines one by one, in fact, he doesn't even observe every leaf—the leaves on a big tree, ranging from thousands, tens of thousands, or even hundreds of thousands.

With so many leaves, it was impossible for Xu Yi to observe them one by one and then imprint them in his memory palace.

Not to mention the question of whether it can be done, even if it is done, how much time will it be wasted?!

Therefore, starting from the sixth-level memory palace, Xu Yi basically uses the virtual construction method, although the sixth-level memory palace built in this way and the seventh-level memory palace and eighth-level memory palace are much more illusory, but relatively speaking, its overall difficulty is still smaller-well, compared to Xu Yi!

If it is an ordinary person, you want him to construct tens of thousands of leaves in the memory palace, and all the lines of tens of thousands of leaves, and even the fine lines after all the lines, and every leaf, every line, and every fine line is different, which is something that normal people can do??!

Hehe!

Not to mention a normal person, even if it is Xu Yi, who has opened the hanging, it has taken nearly half a month, and it has not really been built.

For ordinary people, it is better to imagine something like that out of thin air, than to see it one by one!

At least that's a little bit of a possibility, imaginary?

It can't be done!

Impossible!

"Finally it worked!"

At the moment when Yue Buqun finished his morning class, Xu Yi also broke open his eyes, and at that moment, there seemed to be an illusory courtyard flashing in his eyes, and it disappeared in an instant, as if he was hallucinating.

After spending nearly half a month and putting eight times the original two hours a day into this ordinary state reading time, he finally built this eighth-level memory palace today!

"It took me half a month to open the eightfold normal state and build the eighth-level memory palace, how did Sherlock build the ninth-level memory palace?"

Xu Yi in the eight-fold ordinary state is not weaker than Sherlock, it is so difficult for him to build an eighth-level memory palace, and the difficulty of building a ninth-level memory palace is ten times or even a hundred times more difficult than that of an eighth-level memory palace!

With such perverted difficulty, how did Sherlock build a ninth-level memory palace?