Quantum computers seem like the main possibility here, and this market currently has it around 27%

@IsaacKing The "Ancient/OG" method of "Bitcoin Time Locks" had a limit of the year 2035.
Did you know this or just a coincidence you chose that year?

@SirCryptomind Just a coincidence. Elaborate?

@IsaacKing I can't find the old thread on bitcointalk , but it had something to do with block height and possibly unix.

Here is a decent article on others that were available once the old way was found to not be good enough : timelocks

I could be wrong but something to do with json files in the first few years also caused major issues (this could be and probably is unrelated)