I assume that “200” is just a random number, one that you put forth simply in order to mean “a great number”. (Why would you assume I don’t already have 200?)
Anyway, there are many ways of dealing with the sequential order of palaces when you’re using more than one to recall one connected chunk, or interconnected chunks, of information. Let’s say you use more than one in order to memorize a 1000-line poem. In that case, there are an infinite number of ways to recall the proper sequence of palaces without any overlap. You can place the palaces along a street going in a specific direction, in which case you can see the order right away. Or, if you’re running away from the Adjustment Bureau, you can rush out the back door of each palace and enter the next one. Maybe there’s a giant neon sign over the door, flashing the announcement telling you which is next.
Let’s face it, “overlap” isn’t necessary in order to recall extremely large chunks of information. (I don’t recall Dominic O’Brien using overlap.) On the other hand, I can hardly say that it can’t be done that way. If Gavino can use overlap successfully, then I’m glad it works.
My criticism was only about using someplace (in this case the garden) and stocking it with images in order to bring you to a memory palace that you can easily get to without having recourse to the images in that garden. I mean, do you really need a garden (or room) to remind you who your friends are? You already know who they are, therefore the palaces of their homes are instantly available to you.
Personally, I’m not interested in the philosophy of any memory system, only in the nuts and bolts of it. That’s my objection to those books that include charts, graphs, excerpts from lab studies, analysis after analysis of how the brain “really” works.
My use of the word “valuable” was meant only to signify the loci that, in my opinion, should be used for storing/placing images that directly recall the information, not used for storing/placing images that merely send you to another palace, which you can create independently. A palace to send you to (or remind you of) other palaces? It seems to defeat the purpose, which to me means to simplify.
You see, it’s never a big deal to create a palace with a thousand loci. We can all do that. But look: suppose you have a palace with 1000 rooms and each room has 1000 loci; you’ll end up with one million palaces. OK. But why not simply create one million palaces independently, without having to go through the intermediate step of making a palace to go to a palace or palaces? Don’t forget, all palaces have unique characteristics. No two are identical. Walk through enough houses, offices, buildings, churches, supermarkets, malls, etc., and you’ll end up accumulating all the palaces you could ever need, all without having to create one to get to them. Do the same for the journey method. Walk, observe, look around, see possibilities.
The only question you’ll have to ask yourself is: Would a palace or a journey be better for the memory task I’ve set for myself?
As far as movies are concerned, I have to admit that I don’t always walk inside the scene. Sometimes I imagine myself to be the only one in dark theater and, being able to see a particular scene very clearly (and therefore the loci), I can then populate that scene with my various images.