Actually they can't... not right now anyway.
The big crux of 168's debate is that Saitama was clearly on an emotional high he never touched before and Garou copied that. Neither of them would ever scale to what they did there normally anyway.
Then what we see in 169 further deflates what we see in 168 as Garou was scared of Saitama's sneeze blowing away most of Jupiter... which if we go back to 168, he should never have been scared enough of that to dodge nor think Saitama would die falling into the Sun.
Doesn't help it turns into a complete non-event as CH Garou dies doing his Time Travel nonsense and Saitama completely forgot about what happened upon merging with his past self and nothing he states has him state he somehow got more powerful just then.
The big crux of 168's debate is that Saitama was clearly on an emotional high he never touched before and Garou copied that. Neither of them would ever scale to what they did there normally anyway.
Then what we see in 169 further deflates what we see in 168 as Garou was scared of Saitama's sneeze blowing away most of Jupiter... which if we go back to 168, he should never have been scared enough of that to dodge nor think Saitama would die falling into the Sun.
Doesn't help it turns into a complete non-event as CH Garou dies doing his Time Travel nonsense and Saitama completely forgot about what happened upon merging with his past self and nothing he states has him state he somehow got more powerful just then.