It's still too unpredictable trying to be transparent IMHO. Scalarization can fail in surprising ways just due to what a maximal atomic write can be on the tar

It's still too unpredictable trying to be transparent IMHO. Scalarization can fail in surprising ways just due to what a maximal atomic write can be on the target platform, and then it fall back to heap allocated objects. Even if there's type erasure. I much rather have the compiler balk at me than let me write something that may or may not work as expected.