User blog comment:Billicusp/Extending ExE to absurd heights/@comment-27513631-20160217224635/@comment-27071675-20160222015103

Yep, that's what I thought. The screw-up thing I mentioned was having each type of bracket restricted like that. But now I'm pretty sure the angle brackets allow for arbitrary-length arrays, and that's just the second level of levels. The stellathromax would approach (but certainly not reach) the BHO. I think.