Can you elaborate?

There would be no automated consensus over results of execution of programs that power the applications

Just curious, which would be most reliable? One entity confirms it who confirmed 1000 previous results, 2 who confirmed 500, 10 who confirmed 100 or 1000 who confirmed 1 previously?

How about the actual case: many thousands of entities, who confirmed hundreds of thousands of previous results?

Would many thousands of entities, who confirmed hundreds of thousands of previous results be preferable over hundreds of thousands of entities, who confirmed many thousands of previous results?

I think I'm pretty much ok with either one.

How few executions (or partial?) could one get away with?