We know that all bitcoin transactions will be recorded in the ledger and the data will get bigger day by day, is it logical if the recording has reached 100 or 200 years, and how big will the bitcoin ledger data be in the future?
Reading your title, I thought you are discussing about Ledger hardware wallet but reading this sentence, I knew you want to discuss about Bitcoin blockchain and its public ledger, not Ledger wallet.
In my opinion, bitcoin transactions are very slow, because they take around 10 minutes
There are three components in a pyramid, Time, Scalability and Security. Developers struggle to choose 2 or 3 as their main priorities because they can not maximize all three for a same blockchain.
I agree that Bitcoin block time is too long, 10 minutes and current design makes its transaction fee is expensive but one thing I really like about its blockchain, Security. You can not find better blockchain with security like Bitcoin blockchain.
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