Is it easy now?

HN usually adds the year in the title if its is not from the current year.

The technologies (Kafka, Kafka Connect, Kafka Streams, whatever you use) have stabilized somewhat but Event Sourced systems are as complex as ever.

Kafka and friends can be used in reactive pattern paradigm ( understood as here https://www.youtube.com/watch?v=eRxLfUIMJwk&t ) - only partially overlaping ES idea, which in general has much more sense to me.