I'm no fan of fiat, but your statement is tautological at best: the fiat currencies that have collapsed, collapsed. Communications tech and electronic fiat make the future anyone's bet.

Tomorrow always different right?

You're some saying it'll be different this time, and the only explanation you give is, 'communications' and 'electronic', and yet plenty of fiat currencies have collapses under such systems. Again, every fiat currency that has ever existed has collapsed, sure there are some new ones that haven't yet but to believe they won't is magical thinking.

Again gold, after thousands of years, is still being hoarded in vaults by every major and minor world power, you really need to review some history.

The USD and Euro haven't collapsed, so I'm not sure what you're getting at.