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The bots are among us.
(sh.itjust.works)
This is a most excellent place for technology news and articles.
code it to send one message from a bot then feed it to another bot. I assume it has a charicter limit per message (chatgpt does, haven't tried others) so getting it to change messages will be actually infinite.
Also you can get it to send a bunch of random emojis which (I assume) takes more energy/money than just text.