However the dollar could prove to be more resilient than people think, the dollar has collapsed before, and its still there, a possible scenario is that after a dollar collapse, the Fed decides to have a gold backed dollar, and BAM the dollar is back again (obviously this is unlikely but still possible)
That scenario will probably not happen. Once the US dollar collapses, anybody who has gold or silver or crypto will be the only people with any more at all. Also, the fed is owned by foreign nations and those people probably would not want to loose the economic control, so gold backed currency will probably never again occur.
True, but it is fun to imagine “what if scenarios”, don’t you think?