I've seen this discussed in a /r/cryptocurrency thread and I'm curious if it's true or not: do IOTA and Byteball truly have concurrent transactions?
concurrency = can it have a transaction in China getting confirmed in the same time as one in France, without them having anything to do with one another?
I think it is true. It is one of the main points of DAG and not using blockchain. Transactions can be validated simultaneously and don't have to wait in the line to get into a block. It is a way to scale. However, there is still a way to add a workaround of timestamp in IOTA's distributed ledger - Tangle -
http://iota.org/timestamps.pdf