a quantity having direction as well as magnitude, especially as determining the position of one point in space relative to another. His ability is to manipulate a vector which definition is presented blood falls under that category and you need blood to live
Sorry but I found this funny. Apparently this dude can go down with a single punch from a normal guy and I don’t think that his reflexes are as good as saitamas soooooooooo
To be fair accelerator can pretty much nullify any kind of power including that which is physical so I think he’d have a pretty good chance. I think the only reason he’d lose would be due to the battery life on electrode around his neck that assist him in performing calculations
If he punched the ground it shouldn't have affected him and they neglected to say that it wasnt a normal punch and also the two people that have been able to get past his reflect either used a strategy that saitama wouldn't think to do and it doesn't work anymore or a person with the ability to cancel other abilities