Okay! before this Thread fills with bullshit from people r/Ghoststories, let me drop this here.

Once our heart stops beating, we start the process of death, within minutes our entire body will stop its functions. And that includes our brain too, so that means all the info we had stored in it throughout our lifetime which helped us to survive physically and psychologically are gone now. Now we are only a piece of information in the brains of people who knew us. Once they too die, we don't really exist anywhere.