[smsm42]

Except reality has so far proved that it is possible to use QC for solving one QC-specific task that is hard to solve classically, that's it. That's not what "naysaing" was about - the "naysaying" was about the fact we have no way to use QC for known classical tasks, and the path to such juicy targets as breaking commercial public key encryption is entirely unclear. Virtually nobody says it would never ever happen - but so far it has not happened and will not happen soon, and reality has not proven anything contradicting that yet. When, in 2038 or in 2083, the reality finally gets there, then your condescending attitude towards the naysayers would finally be completely warranted. But not yet.