Yes, you can blog from your iPhone. However, there are a few caveats. First, you will need a blogging app that is compatible with your iPhone.
Second, you will need an Internet connection. Finally, you will need a web hosting service or blog platform to host your blog.
If you have a compatible blogging app and an Internet connection, then you are good to go. Simply open your app and start writing! However, if you do not have a compatible blogging app or an Internet connection, then you will need to find a way to host your blog. One option is to find a web hosting service or platform that supports blogging.
Another option is to use a free blogging platform such as WordPress.com.