Kafka's fine, it's got a lot of market share and existing orgs with large deployments aren't going to go through the pain of switching needlessly. Pulsar is gr

Kafka's fine, it's got a lot of market share and existing orgs with large deployments aren't going to go through the pain of switching needlessly. Pulsar is great, I love how it combines message queue and pub-sub semantics. Tiered storage etc. The built-in cluster replication is brilliant, although it has some limitations - you can't replicate from cluster A to cluster B to cluster C due to how Pulsar avoids the active/active infinite replication circle of doom. But, it's early days for it. Anyone adopting it will need to invest more time in learning the innards compared to Kafka.