Here's a way to look at it:
Web 1.0 - Permissioned Read-only
Web 2.0 - Permissioned Read & write
Web 3.0 - Permissionless Read, write & own
Web 1.0 - Permissioned Read-only
Web 2.0 - Permissioned Read & write
Web 3.0 - Permissionless Read, write & own