On of the pros of Bitcoin since its birth is that it’s a public ledger, anyone
is allowed to send and receive payments and data on the Blockchain. However,
Bitcoin’s network does not provide a way of encrypting communication between
nodes, which allows manipulation of data, mass surveillance and analysis of its
users.
Although encrypted communication is currently a possibility with VPNs, TOR or other
mechanisms, it is not easy for the average user to setup such a connection.
There is BIP draft called BIP151
that aims to add encrypted communication to Bitcoin’s network and which currently seems implemented only by Armory.
Reddit user /u/StopAndDecryptposted
the following chart, showcasing the speed of Block Propagation over the Bitcoin
Network:
When blocks return to their maximum capacity, we will have normalized data for
making better comparisons. StopAndDecrypt describes this as “an efficiency
floor of 1-2 seconds and delay may no longer be the scaling bottleneck”.