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One thing that always bothers me about BTC is that the whole blockchain is kept, its like half a terabyte by now. Will they ever agree to just trim off everythi
by u678u 6y ago
One thing that always bothers me about BTC is that the whole blockchain is kept, its like half a terabyte by now. Will they ever agree to just trim off everything older than XXX days or similar? It seems hugely inefficient.
- unnouinceput 6y agoIf its trimmed and only last xxx blocks are kept (there are no days in bitcoin as the article nicely puts it) then the people who have bitcoins and just hold it before the trimming happened will lose bitcoins or won't be able to spend them. Every time somebody does a transaction involving bitcoins mined from a long time ago the entire ledger is need it to see the origins of those bitcoins.
- u678u 6y agoOK I see, thanks for the reply. Seems like it'll remain huge for a long time yet.
- samatman 6y agoDepends on what "huge" means to you. Bitcoin is 12 years old now, and it's 320 GB. I could store 2 full copies of it on what's left of my 2TB laptop SSD. In another 12 years, that is in 2033, it will be 640 GB. I'm pretty sure I'll have more than 2TB in my laptop by then; and I could fit one copy of that future blockchain on my SSD right now. Or to put it slightly differently, I can fit the whole BTC chain on a $20 USB stick.