Help me understand something about blockchain and databases

First off, I am not tech savvy person and I hope coders and devs among you want have an urge to insult me and my questions - you should be aware enough that not everyone is a programmer and it is a good thing that we have a division of labor ;).So, blockchain is a decentralized database. And dApps are decentralized apps. But where is the actual data for dApps stored?For example: where does Augur store the data? Or any other marketplace where you can post your ads and what not - is this data stored on blockchain as well? If I understand correctly - only transactions are stored on blockchain, the rest is on regular servers?Blockchain is write only database but if you want to read from it, it is too slow so how do we solve this issue? What if all data is important, not only transactions? How do we store all of the data in decentralized, censorhip and hack resistant fashion?

Submitted September 16, 2018 at 10:44PM

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