Handgemenge

Adding transaction capabilities is a problem since ultimately it destabilizes the trust for it. Every time people need to change the code they'll be a danger of a fork which destroys a little bit of a trust.

Block Chain technology and especially Bitcoin is by far not yet mature after 8 years. Already in the past, there have been events which have put the trust of the investors heavily burdened without ultimately destroying it. A chain split will be just another challenge.

Bitcoin will never be the cash replacement that people want it to be. Just the fact that it has a limited number of coins makes it a problem.

There will in fact never be more than 21 million bitcoin. But these are already 2100 trillion Satoshi today. This divisibility can be expanded in the future.

The interplanetary file system [1] comes to mind. Not direct comparable to TFS, but its feature set could inspire a local file system, too:

- historic versioning (like in git)

- deduplication

- authenticity through cryptographic hashing like in block chain

- distributed delivery like bit torrent

I don't think, that we need another ZFS or btrfs competitor. Just my 2 cent.

[1] https://ipfs.io/

https://www.sslshopper.com/ssl-checker.html comes to mind

After several attempts I think there is no free domain. Or maybe the test is just broken ...