Consume Product

Jujitsu is not fake. I kid in my high school was a brown belt and used it in fight against someone who was bullying him. It was amazing. My buddy just shut the kid down and prevented the bully kid from even fighting at all. Everything he tried to do was completely neutralized. It was impressive to see.

Technique is good, but you need substance behind it. Like cooking, no matter how good your chopping and stirring technique is, you can't turn chicken into steak.

Second guy kind halfway accepted his fate. Maybe he even enjoyed it a little.

There are ways to stop this, but it gets harder and harder the larger the size and strength discrepancy. BJJ is a sport before anything else, and there are much better options for pure self defense on the street. My preferred martial arts are ANAC & NRAB.

How embarrassing. And hilarious.

Just to highlight a parallel to programming:

We know that hardware capabilities improve exponentially over time, like double the effect every ~2 years. But improving an algorithm can yield extreme improvements. A simple example:

Imagine you have a list that roughly has 1000000 objects at a time. You continually add and remove objects from that list. If you want to find a certain object, you'd need to iterate 1 to 1000000 objects every time, so ~500000 on average.

Alternative: You use a dictionary. It uses a different logic than a list. Like using a notebook vs memory cards to store information. What it can is that each entry can store a key like a name, ID or whatever. And if you have that key, you can almost instantly get or remove that object. No longer you have to iterate ~500000 on average, but get to it with 1 step.

This improved technique yields an improvement of 50000000%. In order to get that improvement you'd need to wait 38 years for hardware to improve, assuming it would actually double in efficiency, and each time whatever is added with each doubling is also doubled.

Anyway, technique is important. But it doesn't have the crazy exponential pattern as in computers. So strength matters a lot too.