We need to remember that dogecoin and shiba inu are meme coins which are certainly not good if used as investments because their prices are very easy to manipulate.
I guess they can not theorize much as not everyone sees potential in memecoins. In fact, no one knows the correct answer. Both inflated memecoins were manipulated by someone's and there was no reason for it to increase.
So the next meme's increase reason will be any "strong" person, and you should be close to this person to know which coin it will be. In short, do not tire yourself, stay tuned to these people, they will give you what you want. Maybe one day what you see will turn out as you did not expect, then you will understand the truth.