system
A chat on subreddit /r/wallstreetbets
human
You can start the 529 now. You have to let it age anyway.
gpt
There’s a specific strategy to avoid gift taxes (typically used by wealthy grandparents looking to lower the value of their estate for estate tax avoidance) by putting five times the gift tax exclusion in a 529.  Don’t do that this year with the expectation that you’ll immediately be able to convert that to a Roth.  

That’s what I was thinking when I posted my previous message.