Nope I was addressing point #1. Perhaps you should reread what you wrote. 
I re-iterate you missed the relevance.
1. You can't increase the key size of the historic chain.
2. Cracking historically spent coins is not a threat. The threat is cracking anonymity history at any time in the future.
3. The crack threats are not just due to key length. Key length won't help you in some cases against math discoveries, and certainly won't help against quantum computers.
4. Your heirs won't be dead in 10 - 15 years (or less or slightly more).
2. Cracking historically spent coins is not a threat. The threat is cracking anonymity history at any time in the future.
3. The crack threats are not just due to key length. Key length won't help you in some cases against math discoveries, and certainly won't help against quantum computers.
4. Your heirs won't be dead in 10 - 15 years (or less or slightly more).
Still waiting for quantum computers to become an actual threat that is viable.
I can't see a reason you couldn't increase the size of the key. Why not? Update github and allow for longer keys to be allowed. Monero just allowed for 25 word key instead of a 24 word key recently in the missives.
Math discoveries in SOME cases lol okay like?
Just because there is a way to somewhat shorten the amount of time it may take to crack a key or anonymity doesn't mean that it can't be mitigated in a simple way as using a longer key length.
I was doing my own QC research back in 2009 and back then they said it was 10 years out....now it is 10-15 years out? Lol looks like not much time has been cut off that estimate in over 5 years.
Sorry but your argument does not hold water. Just words on a forum from someone who appears to enjoy listening to themselves talk and type.