I think there are a couple different types of cynicism and one might be more justified than the other. The first one I see is along the lines of "This was only

I think there are a couple different types of cynicism and one might be more justified than the other. The first one I see is along the lines of "This was only net energy gain in the plasma and not overall so it shouldn't be called a breakthrough". The net energy gain in the plasma is still a huge step and rightfully called a breakthrough. The second one is along the lines of "These are just intial results and the article says the data is still under review". This one I totally get. Replication of scientific results and accounting for all sources of errors is real big deal. The NIF had an experiment last year where they we able to achieve an ignition reaction but were unable to replicate it.