> "Remarkably", "perhaps unintuitively", "convention states", "a striking consequence", "a surprising result",
are very different to "You may not believe this,"
because they don't say "you" they state it in a general way which is ambiguous about weather it was e.g. "remarkable" for them or many they know
so they don't make assumption about every specific reader, instead they make assumptions about themself and/or readers in general
The examples you state all are different and in my opinion miss the point. In no case do they say "you ..." or anything close to this. It's always in a genericway. In other words "even experts will find it peculiar", "theories of this kind are erroneous", "he - as in a generic scientist - needs to consider something".
are very different to "You may not believe this,"
because they don't say "you" they state it in a general way which is ambiguous about weather it was e.g. "remarkable" for them or many they know
so they don't make assumption about every specific reader, instead they make assumptions about themself and/or readers in general
The examples you state all are different and in my opinion miss the point. In no case do they say "you ..." or anything close to this. It's always in a genericway. In other words "even experts will find it peculiar", "theories of this kind are erroneous", "he - as in a generic scientist - needs to consider something".