Bitcoin may pump up but it wouldn't be "like crazy" as mentioned by the OP. I am also in support of those who want a gentle growth. If bitcoin pumps like crazy, it means it will fall like crazy as well. All we have to do is to avoid those negative minded people who are always spreading fake news just to cause fear and panic in the market to ruin crypto.
Actually everything is possible and, sooner or later, a bull run and then a new bubble have all the necessary background prepared. Really, right now I don't see too many scenarios I could clearly rule as "impossible", neither good scenarios, nor bad ones.