@lcamtuf if you put on two blindfolds it is quite hard to see the chalkboard.

As for replication, students copy down results and see that it is so.

@diagprov @lcamtuf
I'd agree. Everytime someone accepts a #proof the result has been replicated successfully.

In that sense, #mathematics is probably the science with the highest rate of replication and very high success rate in replication.