When someone makes a target person to begin recalling something, it doesn’t necessarily lead straight to certain though, but after few hours or maybe after a day or two — depending on the purpose — target person is more ready to recall details from a past event, moment, situation, happening, task, picture, concept etc with additional suggeestions. The fact that by "warming up" target person’s mind, he becomes more ready to recall something easier (consciously or subconsciously), can be utilized by taking target person’s mind toward a memory for which there weren’t "shortcutting" (triggering) memory. It could be possible that someone had planted such shortcuts to target person’s mind, assuming that they would be beneficial later, years later.

If shortcuts aren’t available and it could be possible that giving initial "directions" to target person’s mind, his mind might start to wander to directions, which wouldn’t lead to what was meant to be reached, he must prepared either with rather straightforwarded suggestions or something more finetuned.

Even when Facebook claims that the artificial intelligence they are using is "too stupid" to make good assumptions/conclusions, they highly probably actually lie and thus they kind of "buy time" for everyone working on the AI-related fields, so that they could keep working "under the scope of the media" (hundreds of newssites have mentioned how (influencer-like) Facebook’s AI is not ready even for simple tasks, which humans handle easily). At the same time trials and research related to the brain is getting very hot and is producing better knowledge about what a human is as a creature.

If it is wished that it is imperative that certain sentence, which happened at certain moment of time and the context where it happened is limitedly rememberable starting from certain points of thoughts, must be remembered by certain person, it might be required to control target person’s mind by directing it to go reversedly along the following route:

Silently spoken sentence (7) ment to a lady, who couldn’t be seen (6), by a man (5), who spend a moment at (4) the kiosk (3) that near the casino (2), which resided in Monaco (1).

If it is meant that such directing happens without a target person becoming aware that he is been affected and there can be seen a possibility that target person’s mind might get cluttered from too many details/memories , he will be affected in phases: first he is lead to think about the Monaco and before he has time to see a world map in his mind for too long he must be lead to think about the casino residing there. Then maybe after a delay of some sort, just to give his mind a period of time to warm up by its certain parts: more suggestions. After thinking about those two buildings, he will remember more related details and just to be more sure that he will think something certain first, he has been affected in adcance in a way that certain memories will "popup" easily. Possible techniques include activating words, objects, situations etc. which have similar features to those in target person’s memories related to certain point of time in Monaco. Suggestions may have been straighforward or something more finetuned (exposure sets, see Text 1). The ones implementing this trick have probably practised usage of their methods for a long time against different individuals, so that they could be able to confirm that target person did think about something certain. The confirmation techniques aren’t explained here.

Sometimes purpose is not neutral or filled with good intentions, but merely to hurt someone’s mind. In those cases target person’s mind is kept overly active for certain kind of non-wanted memories. It would get worse, if these non-needed memories connect to each other as such or someshow artificially as that would lead to related neural circuits getting stronger and thus those thoughts might appear in conscious mind more frequently. Thoughts can create strong emotional responses and thus produce possibly totally unneeded overloading sympathetic nervous system (its primary process is to stimulate the body's fight-or-flight response).

More clever/nasty though controllers may try to benefit from the fact that someone might not want to think about something at the moment, when he has just began to consciously recall a memory of some sort. For example, he might try to avoid it like presented here:

deeper -> deeper -> closer -> a detail -> wasn’t a nice detail at all, prefers to remember something else -> scans the room he sees in his mind -> there’s something, which feels better

And that something he sees in his mind would be exactly the one that someone wanted him to remember. Maybe because that something had originally high potential to be remembered from very few possible even relatively interesting/strange/whatever things. If the remembered thing was a human being, the next though might be related to other similar, rememberable people, who tend to be around that place. And that wouldn’t have happened, if he didn’t avoid to think something. Here we are close to the reasons, why someone’s behaviour is partially characterized as neurotic or OCD-like, even when it would be caused by other people and their affecting methods, and thus wouldn’t be derived from his own normal thinking. Really nasty people might sometimes try to distract target person in a way that momentarily lessens his ability to use executive functions (a set of cognitive processes like attention control, working memory and cognitive flexibility) as that limits the possible (probable) thoughts to which target person mind end up to.