Decentralized blockchain version of “Google maps timeline feature”

[Luanda2201]

Google timeline feature is a very nifty feature of the Google maps app, basically making a full diary of a person’s movement and the type of transportation he/she used.

On one hand, it is an interesting and useful idea which could be implemented in many areas, both privately (having a “movement diary” automatically made for you could come in handy in many occasions) and commercially or even socially (big amounts of data gathered in such a way could be of big help to the decision-makers and could help our cities and communities become more “smarter” and more optimized).

But of course, on the other hand, immediately it sounds like a “surveillance project” with great potential for misuse of power. If such a service is centralized (like it currently is, being provided by Google), anyone has the right to question whether or not such a service is TRULY being used only for the purposes described or is it in the power of the few to forward it or sell it to third parties (or CIA, for example).

Now, what if such an app is made on a decentralized platform, like Ethereum for example, where the code is actually open-source and there is no way for a single entity to access, manipulate or sell the data gathered?
Let’s say, idealistically, that this app would be capable of making anonymous but location-based statistics, that would benefit the decision-makers without compromising the privacy of the users, while at the same time giving the possibility to the users to have their “movement diary” captured for their own, private use. Wouldn’t that be extremely beneficial?

Of course, Google maps uses tons of data and computational power in order to make this feature possible, and it might not be feasible to replicate that (in a scalable and cheap way) on a platform such as Ethereum (because of the high fees for gas and storing data, slow transaction speeds and terrible scalability at the moment, maybe ETH 2.0 changes that but we will see).

Does anyone think that it might actually be feasible?
Does anyone even share the enthusiasm with me, that it could be very beneficial for a lot of people? 

[Vod]

Does anyone think that it might actually be feasible?

I don't think you understand what a decentralized blockchain is and why putting public non changing info on one would be useful.

[LeGaulois]

It can't be anonymous if the decision-makers can access data. Transparent maybe but it sucks in privacy terms.

Too easy to know your address, where do you work, what do you do on the weekend, when do you leave the house to go to work, your favorite supermarket, etc...
And of course, easy to get your name/last name.

All the information needed to build a profile...

Open source doesn't mean decentralization and to be honest I don't see how a blockchain can be useful. People want to "blockchainize" everything while a secure database could be enough

[SFR10]

Does anyone even share the enthusiasm with me, that it could be very beneficial for a lot of people? 

IMHO, I really doubt someone would say "yes" to that question ^{[based on what you've presented here]}...
^{- The main issue is the fact that with your idea, you'll be introducing new problems while not completely solving the previous ones [nonsensical].}

[LeGaulois]

decentralization has been misunderstood in blockchain,

Yeah, and you're one of the people who have no idea what is decentralization and blockchain.

decentralization has been misunderstood in blockchain, it is not a place to manage anything central and make it possible in a decentralized way.

It's not because you use a blockchain that it has to be decentralized. Have you ever heard about private blockchains? There is no decentralization in a private ledger. The success of this technology is not at all related to the place it takes, it is about a distributed and cryptographically secured database to make it short. The technology can apply to a lot of different industries, not just about currency and financial transactions.

Miners charge fees to verify each transaction. not 100% decentralized and anonymously.

What are you talking about?

Maps will be decentralized if the servers delete all logs and it will not be free. Will the authorities allow that?

You truly have no idea about decentralization. If the logs are deleted it doesn't mean there is a decentralization. What is your point about the authorities? Do you think they wouldn't allow a decentralized version of google maps?