When you see two characters, one of them larger, and one of them smaller, the first thing you notice is that the larger fighter would be able to cover more distance per movement in comparison to the smaller person, who would be able to cover less distance per movement. Now, the main question that needs to be answered is
| At what distance are the said movements/attacks coming from? |
We will use two examples in this case. One would be a Kaiju, and one would be an ant.
For example, we have a character, such as the Kaiju (giant monster), who would be around 50m in height. Let's also say that the Kaiju is able to move its own body length/height, or around 50m/s. We will label this term as velocity. A diagram has been provided for this below.
Kaiju vs Ma
Find the time it takes for Kaiju's attack to reach the person in question. The variables have been listed below.
- Kaiju attack speed, or Velocity = 100 m/s
- Distance between Kaiju and person = 50 metres
- Time = X
From the above known variables, we know that
- Time = Distance/Velocity
- Time = (50m)/(100m/s) = 0.5 second.
Thus, we can conclude that the time it takes for Kaiju's attacks to reach the person would be one second. Considering that the average human reaction time is 0.2 seconds, this gives enough time for the person in question to sufficiently perceive the Kaiju's attack in question.
Would the person in question be fast enough to sufficiently dodge the attack? Hell no. This is because the person's movement speed (caps around 10m/s) would not fast enough to sufficiently dodge the Kaiju's attack in question. The person can perceive the Kaiju's attack and react to it, but he can't move away from the incoming attack fast enough, so he still dies.
Damn House Flies
Find the house fly's speed in the diagram below. When the fly swatter moved a distance of 0.3 meters, the house fly moved a distance of 0.7 meters. The speed of the fly swatter is 3m/second. The velocity of fly = Vfly
- Vswatter = velocity of fly swatter = 3m/second
- Distance fly moved = 0.7m
- Distance swatter moved = 0.3m
- Vfly = ?
Now, to find the speed of the house fly in question, you just find the ratio for the distance fly moved and the distance the swatter moved, and multiply it by the speed of the swatter. So it becomes
- Vfly = (Distance fly moved / Distance swatter moved)*(Velocity of swatter)
- Vfly = (0.7m/0.3m)*(3m/s) = 7m/s
So, the velocity of the house fly in question is 7m/s, which is faster than the incoming swatter in question. We can also find the reaction time for said fly in question, which we can do so by dividing the distance the swatter traveled, by the velocity of the swatter. This will provide the time it took for the swatter to move 0.3m.
- Time = Distance swatter moved / Velocity of swatter
- Time = (0.3m)/(3m/s) = 0.1 seconds.
Seeing that the fly managed to move away by the time it took for the swatter in question to reach 0.3m, we can safely say that the reaction time for the fly in question is 0.1 seconds, or lower.
Would the person in question be fast enough to sufficiently dodge the attack? Yes, because the fly managed to move away distance while the incoming fly swatter was heading directly towards said fly. This would also a reaction/movement feat for said fly as well, since he managed to perceive the swatter and dodge it. Basically this entire post is summaried as
- Time = Distance/Velocity
- Required reaction time = Distance between the attack and person / Velocity of incoming attack
Conclusion
As for why all the above post was written, it is to just prove that you can still sufficiently see attacks from characters that are many times faster than yourself, if the incoming attacks are of sufficient distance away from the person in question. But then, we have characters who are capable of dodging incredibly fast attacks at very close ranges.
For example, if a person was able to dodge a lightning bolt while said lightning bolt was already heading towards the person in question, it would mean that the person was able to perceive the lightning bolt coming towards him, and move his/her body away from it in due time. This would be
- A reaction feat since the person managed to dodge within the timeframe it would have taken for lightning bolt to travel towards the targer.
- A combat speed feat since the person managed to move his/her away within that timeframe.
As for what all this means, if you have a certain
Reaction speed via movement, it would be safe to say that you can fight at that speed as well, meaning your combat speed would be comparable to your reaction speed.
Reaction speed = combat speed
As for this topic, I mostly agree with what
Matt has presented here. As for how we are going to implement this proposal, note that Eren in his Titan form has a
Supersonic reaction feat, which is still much above that of a normal human in proportion to his size.
Treat this as a case-by-case basis thing.