Who competes with handshakes?

In the realm of financial transactions and digital currencies, it's intriguing to ponder who or what might compete with the traditional handshake as a symbol of trust and agreement. As the world increasingly embraces blockchain technology and cryptocurrencies, are there emerging alternatives that challenge the handshake's long-standing status? Could decentralized networks, smart contracts, or even biometric authentication systems be seen as competitors, offering a more secure and efficient way to establish trust and execute deals? Or is the handshake's significance rooted deeply in human interaction, making it an irreplaceable aspect of financial transactions, regardless of technological advancements? It's a fascinating question that merits further exploration in the ever-evolving landscape of cryptocurrency and finance.