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So synchronous communications, which requires both people to pay attention at the same time. So a phone call is synchronous communication, which means both people have to pay attention at the same time. Because if I'm calling and you're on the line, I can talk to you, that is synchronous. We are synchronising, but we both have to pay attention at the same time. Asynchronous communication is when you are communicating, but you don't have to pay attention at the same time. So WhatsApp is asynchronous, a phone call is synchronous and a meeting is synchronous. So a synchronous communication has much higher value, a phone call or meeting. But asynchronous communication has many more avenues than synchronous.
