"Master, tell me more about this 'Blinker Principle' [140."
"It is not very difficult. When you have: 54638942586279813, now, is it the same as 54638942586249813, or not? You can do it, but it is tedious work. So I put them down again in this way: 43689425827981373 and I put the other one exactly underneath, 43689425824981373 and see, it is easy to check them. You follow both lines in vertical pairs, and notice the 'change', on which ideation is always so keen. The task is simpler than the ranges starting with 5, solely by their possition in the field of sight. Now imagine a more difficult task, although we use the simpler binary code. Imagine: + - + - - + - - - - + + - + - + + + - - + - + - + + + + - - + - - + - + + - + - + + - - + - + - - + - + + + - + - - - + + - + - + - + - + - - + - + - + - + + + - - + - - - + - + + + - + - + - + + - + - + + + - + - and so forth. Imagine this over the whole page. Now you go out of the room and I change one bit, a + into a - or the other way round. Which one is 'changed'? An impossible task since even I can not remember which one it was. Luckily I have a photograph made before the change, and we make one of after the change. If you now have an instrument that can show each one of the photographs alternatingly with some speed in the same field of sight, you will see that only one spot in the whole scene appears to be blinking. That now is the changed digit. You see it at a glance while without the system it was impossible. It is a shortcircuiting of memory. Even on these rows of cyphers, the vertical compa(i)risons, you use memory. Such too are the the principles of ideation (memory, pairing etc. )." [140], [166]