Just a quick question, I cannot find the updated information about what has been done in Shelley to prevent “Nothing at stake” problem and “adversarial fork”, and any problem reflecting the fact that a stakeholder would not have to commit to a specific block extending a specific blockchain, but could try multiple ones without any cost . During the ITN I seem to remember that adversarial forks were a problem in practice.
I think that turnarounds for these problems were often proposed when talking about Pos, and do not seem that complicated. Introducing a mechanism that make it costfull for a pool to broadcast to the network, or send to a part of the network, a block that does not end up being integrated into the final chain. But I’ve not heard any such mechanism introduced to cardano.
Can you explain?