If we get any information then we might not remember the source of information for a longer time but we have that information remaining in our memory. We keep believing in it.
Solutions for getting saved from sleeper effects are –
First, don’t accept any unsolicited advice, even if it seems well-meant. Doing so, you protect yourself to a certain degree from manipulation.
Second, avoid ad-contaminated sources like the plague. How fortunate we are that books are (still) ad-free!
Third, try to remember the source of every argument you encounter.
Investment – When we read something about a particular stock then it remains within our memory that can be a WhatsApp forward or someone just tried to illustrate it. But due to the sleeper effect, we cannot remember the source of the information for a long time.
For overcoming this bias, whenever we get any stock information that is in the tracking list or we have invested, then keep writing down a source with the information. Also, try to take information from reliable sources only. We should not believe in any casual messages we received.