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These locks can be picked according to the same principles as used for ordinary pin tumbler locks, but, again, different tools are used to accommodate the different shape of the keyway. And this is simply a symptom of the fact that we are confusing the description of the world on the one hand with the world itself on the other. Well, now, you see, you’ve got to realize that we think of the world largely in terms of Newtonian mechanics. But too much of a good thing, you see, can lead us to a confusion between symbols and what they represent. What happened was this: that when we separated events into separate bits, you see, we forgot that we had done that in order to talk about the event. Finally, let’s talk about pool balls. Pool is the most popular in Australia. Some high security locks, such as those manufactured by Abloy and Abus, use round disk tumblers that are rotated into position by a specially designed key bitted with angled cuts corresponding to each tumbler. Each wafer has a large rectangular cutout through its middle and through which the key passes; the precise height of the cutout keys the wafer to different bittings.

SFIC cylinders (such as those made by Best), used in large institutional lock systems, employ a similar mechanism to provide two kinds of keys: regular keys that operate the lock and control keys that unlock and remove the cylinder core itself. Making keys for these locks often requires the use of special equipment and unusual, proprietary key blanks. For example, Medeco locks use special wedge-shaped bottom pins that are rotated into one of several possible positions by the key cuts (which can be cut at different angles). As with pin tumbler locks, because the levers, gates, and fence are slightly out of alignment, it is usually possible to raise and pick the levers one at time. Mathematicians use the concept of a "phase space" to describe the possible behaviours of a system geometrically. The design is based on the late 18th century British Bramah lock (still in production and use today). Croquet is a very old game, widely known and practiced in France since the XI century under the name of 'jeu de mail'. Because there are two independent shear lines, there is no way to control, or even tell, at which shear line a given pin stack sets. If just one pin sets at the "other" shear line, the lock will not open even though all the pin stacks are picked.

Electronic locks, of course, do not have mechanical tumblers and are so not vulnerable to many of the physical manipulations exploited in tradtional lock picking. Many inexpensive locks, especially low-security "cam" locks such as those used to secure furniture and cabinets, do not use pin stacks for their tumblers. Some wafter lock cylinders (especially certain Chicago-brand locks) are double bitted, with some wafers making contact with the key at the top of the keyway and others at the bottom. I am wiggly. Rivers are wiggly. A variety of schemes are used to key the sidebar. The basic principles of operation are essentially the same as those of the standard pin tumbler lock, except that the tumblers are exposed at the front of the cylinder and a round ("tubular") key is used. These locks are often quite susceptible to rubbing and jiggle-key raking. However, that is not to suggest that electronic locks are inherently more secure than their mechanical counterparts.

Waves are wiggly. But under the hypnotic influence of thought-that is to say, linguistic representation of the world-we’re always trying to straighten things out. Effective energy-like, say, the energy of the ocean-always takes the path of least resistance. Just as my finger would lose energy if I separated it from the hand. When you hold a cylinder in your hand you get different feedback from the pins than you do on a real door. For example, Mul-T-Lock cylinders use special "telescoping" pins that contain two independently keyed tumblers. Many of these mechanisms involve the use of a "sidebar" that must retract before the plug can rotate. These locks must be picked at both the top and the bottom, sometimes alternating between them. Not all locks use a physical key. The Primus sidebar is keyed by additional side tumblers that engage a secondary bitting cut into the side of the key. Many dimple key locks also incorporate secondary high security locking mechanisms. Here, however, tighter tolerances and, in some cases, high-security secondary mechanisms, are more common. High-security locks often incorporate one or more secondary locking mechanisms beyond that provided by the conventional pin tumblers.

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