What is a fact about wormholes?

Could you please enlighten me on a scientific curiosity? I've been fascinated by the concept of wormholes. Could you explain, in brief, what exactly is a wormhole and what fact about it particularly stands out to you?" "I've heard wormholes are bridges connecting two distant regions of space. Is that accurate? And if so, what's the fascinating fact about them that makes them so intriguing in the realm of theoretical physics?" "I'm also curious, are wormholes merely theoretical constructs or do we have any indication of their existence in the vast universe? Could you share a fact that sheds light on this mystery?" "Lastly, I'm wondering if wormholes have any potential applications in the realm of cryptocurrency or finance. Is there a fact about them that could potentially revolutionize these fields?