system
Given the following post, respond as if you're commenting on Reddit:
human
If I cut a rope into 4 pieces and braid them together, how much stronger will the resulting rope be in relation to it's original specs?

I understand there will be a lot of 'depends', but in general, will it be 4 times as strong? Just a little stronger? Weaker because of the twists?

In the original rope, a knot will introduce a significant weak point knocking off, say, 40% of strength. In the resulting 4 strand rope, will the same knot reduce it's strength by a similar amount, or would it's effects be different? Say the resulting rope is only twice as strong, will the weakness introduced by the knot also have a calculable ratio?

(By braid them together, i mean laying the lengths side by side and braiding them into a rope approximately 1/4 of the original length, not braiding/splicing it back into a rope of similar original length/thickness)

*Edit:* So it seems that getting 4x or even more strength isn't outlandish, mostly due to distributing the weakness over 4 ropes, so you would get > than 4x the strength of the 'actual' rope strength, as opposed to getting 4x the stated rope strength.  (if a 100lb rope has weaker and stronger points, cutting and braiding it will distribute those strengths and weaknesses instead of the entire length being vulnerable to the weakest point (say, 90 lbs) After that, you have to take the braid/twist/material into account and calculate an appropriate reduction in strength into account, which could be nominal, or significant.
gpt
What type of braid?  Can you ensure that the strands don't twist when you braid them?

You're right that there are a lot of "depends."  If the braid is not twisted, then best-case, each strand supports an equal load, so you'd expect your new rope to be 4X stronger than the old rope.  However, if you introduce any uneven load distribution when you make the braid, then the allowable load would be knocked down by some percentage.  This depends on the material, diameter, twist, and construction type of the rope.  For instance, with a 1" diameter, 12-strand, nylon rope, 5 twists (rotations of an individual strand) per meter results in a 20% knockdown as compared to full strength.

The questions you're asking are all very specific to the type, size, and style of rope...sorry.