Previously, I read an article whose writer said

"At this rate, banks will be taken over by an application of smartphones.

I don't know whether I can agree with the writer, or not.

In the article, the main topic was "black-chain", after all.

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The other day, I chatted with an engineer of an software company, he said to me.

"Ebata-san. "Black-chain" is just a memorandum, but that is unwritable absolutely"

The next day, I tried to make an easy test program and checked the function. And I could accept what he had told.

In order to tamper with the memorandum, we have to

- steal several electric secret keys from somebody in somewhere

- unzip the encrypted memorandum in reverse

I could understand that "this is unwritable absolutely" at the bottom of my heart.

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The significance of existence of banks is to give us the credit of money transactions, and absorb the risks of them

Certainly, from the viewpoint of them, I think that we will dispose of banks, and use "block-chain" alternatively.

However, banking services are not money transactions.

For example, for typical "process works" ,like "succession", "insurance" or "credit assessment works" like "loan", it seems to be impossible to do them without human interfaces and (dogmatic) subjectivity.

In the field, even if there is a "black-chain", it can resolve these problemsm, I think.

However, I also think that there are also aspects that can not necessarily be said.

(To be continued)