A quote from Satoshi's white paper. " A block header with no transactions would be about 80 bytes. If we suppose blocks are
generated every 10 minutes, 80 bytes * 6 * 24 * 365 = 4.2MB per year. With computer systems
typically selling with 2GB of RAM as of 2008, and Moore's Law predicting current growth of
1.2GB per year, storage should not be a problem even if the block headers must be kept in
memory."
Why use memory as a benchmark?
Technology, sure did their part, in his prediction.
Are we paying tx fees based on kb, because they want the blockchain {ledger} to be smaller?
Very inciting perspective he had everything thought of.