It Loops Around

Next day, pay attention to the comments you get: "Damn, looking sharp!" "Whoooo-eeeee, clean and mean," etc.

Then they’re just crimes.

by Alex Andreev

Suwannee Alligator Snapping Turtle (Macrochelys suwanniensis), family Chelydridae, endemic to the Suwannee River Basin of northern FL and southern GA in the SE United States.

Vulnerable.

One of 2 species of Alligator Snapping Turtle.

It can almost certainly tell different species apart based on the shape of those air bladders. And it can tell if a fish has something weird inside it, like a metal hook. In Hawaii, false killer whales often pluck tuna off fishing lines, and “they’ll know where the hook is inside that fish,” Aude Pacini, who studies these animals, tells me. “They can ‘see’ things that you and I would never consider unless we had an X-ray machine or an MRI scanner.”

This penetrating perception is so unusual that scientists have barely begun to consider its implications. The beaked whales, for example, are odontocetes that look dolphin-esque on the outside—but on the inside, their skulls bear a strange assortment of crests, ridges, and bumps, many of which are only found in males.

Pavel Gol’din has suggested that these structures might be the equivalent of deer antlers—showy ornaments that are used to attract mates. Such ornaments would normally protrude from the body in a visible and conspicuous way, but that’s unnecessary for animals that are living medical scanners.’

I'm not sure if I ever shared this story before here, but in Curacao, when I was allowed to assist in a guest interaction programme, there was suddenly consternation in the pool behind us. A guest had entered the water and the dolphins were going crazy, paying no heed to the trainers anymore. The lead trainer that was with me gave the dolphins to me to watch over while she went to help. When she came back she told me what had happened. The guest that had caused so much uproar had left the water again and was asked if he had done anything to upset the dolphins. He hadn't, and he couldn't imagine what was wrong... until he mentioned he had a pacemaker. The younger dolphins in the pool had never seen someone with a pacemaker before and apparently it rocked their world.

IBM 5 in 5: Blockchain and crypto-anchors will help knock out knockoffs.

In the next five years, cryptographic anchors and blockchain technology will help ensure a product’s authenticity—from its point of origin to the hands of the customer. Knockoffs aren’t always easy to spot, and it can be difficult to pinpoint when and where they are substituted for genuine items. Complex supply chains demand an immutable solution to keep counterfeits from replacing authentic products, goods, and medicines. IBM researchers are developing crypto-anchors are digital fingerprints that can authenticate a product’s origins and contents against records kept in a blockchain ledger, so you always know what you’re receiving. Knockoffs beware—your days are numbered.

But the PDF thing kinda makes sense. Bear with me.

But first, some context.

See, in the 1990s before PDF files there was almost no way to generate a document on a Mac and read it on a PC. Or vice versa. Businesses struggled with how to email important documents around and guarantee they looked the same on the other end, regardless of what computer & software the recipient had.

Adobe changed all that with PDF.

Since Acrobat Reader was available (and free!) for Windows & Mac, suddenly the problem went away. Everyone knew how to read a PDF. Adobe became a universally recognized brand overnight even if you'd never heard of Photoshop, because everyone had goddamn Adobe Reader installed.

Because of that, every tech company yearned to be just like Adobe: invent something universally desired, used by billions of people.

Fast forward to a Yahoo/tumblr meeting sometime in 2013/2014.

Tumblr development staff demonstrates how the back end of tumblr works, which (honestly) is revolutionary as compared with how any other social media site worked at the time. Each tumblr post is composed of blocks of data, any one of which can be text, sound, an image, a movie... anything. These blocks of data are threaded together into what looks to the user like one cohesive message (a single tumblr post) but under the hood it's magic.

Further, the mechanism for doing this can be standardized. In other words: tumblr could, if they wanted, publish the standard as a way for ANY social media site to manage its data.

If other sites did that, then they could trade messages with tumblr! Imagine posting a message on tumblr and reading it on Instagram. Or see twitter messages natively on your tumblr feed. I mean personally, that's a horror show. But the concept is interesting.

(In fact, that's how Mastodon and the Fediverse work in 2025. Each Mastodon post is a standard chunk of data that any website can read & display, assuming it understands the underlying ActivityPub protocol and plays by its rules.)

So the Yahoo executives attend this technology demonstration and one of them quite visibly has a light bulb wink into existence over their head. The light bulb is an old school incandescent, 300 watts at least, and glows furiously bright.

The Yahoo exec stands up. His chair knocks backwards.

"OH MY GOD," he stammers. "This tumblr thing could revolutionize social media. It'd be like the new PDF!"

Then blood shoots out of his nostrils and his head explodes, but all anyone ever remembers from that meeting is "PDF".

The reblog chain is one of the things that makes Tumblr unlike anywhere else. All the notes on reblogs are attributed to the original post, no matter which branch people actually liked or reblogged. We want to keep encouraging conversations, and give contributors the recognition they deserve. 

Soon, you'll be able to like, reblog, or reply to any part of a reblog chain, and that note will go to that reblog's author. Each reblog will have its own counts, instead of one aggregated number from every version of the post. And yes, you’ll be able to like multiple posts in one chain.

If a reblog doesn't add anything, the love flows up to the last person in the chain who did. Your post doesn't lose notes just because people spread it quietly.

Past notes will stay on the original post — we're only changing what happens from here on out. Retroactively re-attributing all of them would be... a lot.

As this rolls out over the next few days and you explore it, we’ll keep reading your replies and reblogs, so please keep sharing your questions, concerns, and ideas.

Your creativity has always been the heart of Tumblr, whether you’re the original poster or adding something brilliant in the reblogs, and nothing about this change is meant to limit that.

It seems likewise insane to me that a 20,000-follower account who reblogs my post should suddenly be the only person with the tools to see and respond to activity on what everyone agrees was -- until earlier this week -- "my post". What if a 1,000-follower account reblogs my post, then a 20,000-follower account reblogs that post? Is each of them accountable for the fallout my post generated?