3 ms·

I don't agree with this. Reliability and transactional/atomic reads and writes are different things. "Reliable" is also a vague value judgement. "Shared memo

• DSingularity 6y ago
  I think the distinction he is trying to raise is that messages can be lost in distributed systems. Building distributed shared memory is possible but expensive (readers must write, writers must broadcast). That is why he is raising that distinction and I think it is a good one to raise.
• zvrba 6y ago
  > "Reliable" is also a vague value judgement It is not. Reliable: message delivery is guaranteed, i.e., the message _will_ eventually reach its intended destination. > "Shared memory" implies data coherency. It does not, re. CPUs with weak memory models. Yes, you can insert barriers, but what happens underneath is that HW exchanges a bunch of messages (reliably!) between nodes to bring them to a consistent view of the global state.