DSHR's Blog

I'm David Rosenthal, and this is a place to discuss the work I'm doing in Digital Preservation.

Tuesday, October 28, 2025

The Bathtub Curve

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The economics of long-term data storage are critically dependent not just upon the Kryder rate, the rate at which the technology improves co...
Tuesday, October 21, 2025

Depreciation

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Source More than three years ago, based on Paul Butler's The problem with bitcoin miners , I wrote Generally Accepted Accounting Princi...
1 comment:
Tuesday, September 30, 2025

The Gaslit Asset Class

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James Grant invited me to address the annual conference of Grant's Interest Rate Observer . This was an intimidating prospect, the prev...
25 comments:
Thursday, September 18, 2025

Hard Disk Unexpectedly Not Dead

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As I read Zak Killian's Expect HDD, SSD shortages as AI rewrites the rules of storage hierarchy — multiple companies announce price hike...
2 comments:
Tuesday, September 2, 2025

Luke 15:7

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Source The title of the post refers to the King James Version of the Bible: I say unto you, that likewise joy shall be in heaven over one...
1 comment:
Tuesday, August 19, 2025

2025 Optical Media Durability Update

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Seven years ago I posted Optical Media Durability and discovered: Surprisingly, I'm getting good data from CD-Rs more than 14 years o...
Thursday, August 14, 2025

The Drugs Are Taking Hold

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cyclonebill CC-BY-SA In The Selling Of AI I compared the market strategy behind the AI bubble to the drug-dealer's algorithm, "t...
10 comments:
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