[amohn9]

This statement is definitely just marketing hype, but if we're being pedantic there are tons of questions that are hard to answer but have easy to verify solutions, e.g. all NP-complete problems.

[SiempreViernes]

No, that is being generous towards marketing hype.

If we are being pedantic we could never accept "question we don't know how to answer" as a possible interpretation of "question we don't understand".

[asadotzler]

There's also nothing here that wasn't true of GPT4 so why is bragging about it for GPT5 something notable?