That's a good question to ask the podcast host (the source of those numbers).
On the reference page I linked it mentions:
> Having 40 bits of entropy is approximately 1,000 times weaker than 50 bits since bit strength scales exponentially. In other words, random bits are worth a lot because each additional truly random bit, on average, doubles the time required to crack.
71 days vs 365 days is about a 5x multiple. I'm not sure how all of that ties together.
On the reference page I linked it mentions:
> Having 40 bits of entropy is approximately 1,000 times weaker than 50 bits since bit strength scales exponentially. In other words, random bits are worth a lot because each additional truly random bit, on average, doubles the time required to crack.
71 days vs 365 days is about a 5x multiple. I'm not sure how all of that ties together.