Where could I store my assets in an emergency if there are no more bitcoins?
And you think if there's no bitcoin other coin would survive??
I can say with all assurance that if there's no bitcoin today all other altcoin will fold up by dumping 99 percentage.
Alt coin to bitcoin is always popular if there is no bitcoin then alt coin will be 100% closed. All of us who are involved with Bitcoin know that Bitcoin provides a lot of financial support in our lives, so we will never expect Bitcoin to run out all at once.