I have a question about bitcoin

So let's say someone gave me a btc wallet address and they made a transaction. the address he gave is now invalid. If I sent it to the non existent address it think I wouldn't go through but is there a possibility that someone could have generated the same exact BTC wallet address. Or is this impossible. Please let me know

submitted by /u/unknown_999000
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source https://www.reddit.com/r/btc/comments/hkvi3i/i_have_a_question_about_bitcoin/