For seven years, Samsung built the foldable phone market largely alone, coaxing skeptics and loyalists alike toward a new way of holding the future. Now, as Apple steps into that space under new CEO John Ternus, the South Korean pioneer finds itself in a familiar human predicament: having created something worth wanting, it must now defend it from the very validation its success invited. The 1.6x surge in iPhone users switching to the Galaxy Z Fold8 suggests Samsung's window of opportunity is open — the deeper question is how long it remains so.