Think he means can he continue to fish the same mark over a few days and catch fish??
The fish will probably wise up, but it may be that fish are just moving past that point. If you can work out the highways in a closed system you can bait them and catch them the same way each time.. Fish up north though have lots more pressure on them and are smarter, when growing up we had to try every trick in the book to catch them, when older and fishing freshwater in areas in the cape where everyone is throwing in the sea, all it every took was a handful of koo mielies as lokaas and as many as you could fit on a circle hook that you'd cast with no weights or swivels or anything a few metres into your pile of lokass. I never caught so many fish, so reliably and so many large carp as when I fished like at the good spots down south, at places that were highways for fish, in waters that had little pressure and had endless amounts of large fish.. ;)
Im not a carp fisherman at all, but I've caught hundreds and very big ones..like any fishing it helps to throw it in front of fish, and if it looks like food and the fish is feeding, its going down the hatch, and with any fishing lokaas helps.