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New Mac app wants to record everything you do--so you can "rewind" it later

Find "anything you've seen, said, or heard" using 3,750x compression.

  by [24]Benj Edwards - Nov 2, 2022 9:33 pm UTC
  [25]Login to bookmark [26]86

  [rewind_hero_1-800x450.jpg]
  Rewind reportedly lets you search your Mac's usage history for what
  you've seen, said, or heard.
  Rewind AI

  Yesterday, a company called Rewind AI announced a [27]self-titled
  software product for Macs with Apple Silicon that reportedly keeps a
  highly compressed, searchable record of everything you do locally on
  your Mac and lets you "rewind" time to see it later. If you forget
  something you've "seen, said, or heard," Rewind wants to help you find
  it easily.

  Rewind AI claims its product stores all recording data locally on your
  machine and does not require cloud integration. Among its promises,
  Rewind will reportedly let you rewind Zoom meetings and pull
  information from them in a searchable form.

  In a video demo on Rewind.AI's site, the app opens when a user presses
  Command+Shift+Space. The search bar suggests typing "anything you've
  seen, said, or heard." It also shows a timeline at the bottom of the
  screen that represents previous actions in apps.

  IFRAME:
  [28]https://www.youtube.com/embed/dIV0ZiZluQo?start=0&wmode=transparent

  A promotional video from Rewind AI.

  After searching for "tps reports," the video depicts a grid view of
  every time Rewind has encountered the phrase "tps reports" as audio or
  text in any app, including Zoom chats, text messages, emails, Slack
  conversations, and Word documents. It describes filtering the results
  by app--and the ability to copy and paste from these past instances if
  necessary.

  Founded by Dan Siroker and Brett Bejcek, Rewind AI is composed of a
  small remote team located in various cities around the US. Portions of
  the company previously created [29]Scribe, a precursor to Rewind
  that [30]received some press attention in 2021. In an introductory
  [31]blog post, Rewind AI co-founder Dan Siroker writes, "What if we
  could use technology to augment our memory the same way a hearing aid
  can augment our hearing?"

How does it work?

  Rewind AI provides few details about the app's back-end technology but
  [32]describes "mind-boggling compression" that can reportedly compress
  recording data up to 3,750 times "without a major loss of quality,"
  giving an example of 10.5GB of data squeezed down to just 2.8MB. Rewind
  says that even on a small hard drive, "you can store years of
  recordings"--a heady claim, to be sure.
  [33][rewind_image_1-640x325.jpg]
  [34]Enlarge / Image of a Mac running Rewind.
  Rewind AI

  The Rewind site also describes using OCR to capture text content and
  automated speech recognition to automatically transcribe anything
  you've said or heard, including in meetings, so that "you never have to
  worry about losing this content again."

  (If Rewind converts everything it sees and hears into plain text, that
  might explain the massive compression ratio. The demo did not show any
  live video or audio recording playback, for example, just static
  screenshots with highlighted text. We have asked Rewind AI to clarify
  this point and will update the article if we receive a response.)

  Rewind AI also says that Apple Silicon Macs with M1 and M2 chips are
  key to making the product work in a "virtually imperceptible" way,
  utilizing "virtually every part of the System on a Chip."

Potential privacy issues

  While laying out the vision for Rewind AI in the blog post mentioned
  above, Siroker writes, "Our vision is to give humans perfect memory."
  But commenters on [35]Twitter and [36]YouTube have already begun
  pointing out scenarios where "perfect memory" could backfire.

  For example, Rewind might expose its users to potential abuse from
  overbearing partners, bosses, [37]law enforcement, or repressive
  governments; [38]legal issues from recording sensitive information; and
  [39]consent issues around recording other people in meetings.

  Rewind addresses some of these concerns on its site, saying, "We store
  all of the recordings locally on your Mac. Only you have access to
  them." Their demo site [40]also says that you'll be able to pause or
  delete recordings at any time, and you can automatically exclude
  certain apps from your recorded history, including private browsing
  modes in browsers.
  [41][rewind_privacy_info-640x360.jpg]
  [42]Enlarge / A screenshot of information about privacy from Rewind's
  website.
  Rewind AI

  As far as obtaining permission to record a meeting with other
  participants, Rewind provides its own help page titled "[43]Everything
  you need to know about consent" that includes advice such as "Before
  you record someone, you should always ask for their consent." The page
  recommends telling people the meeting will be recorded--perhaps ahead
  of time--and that users follow all local laws related to recording
  conversations.

  Privacy and ethical concerns aside, Andreessen Horowitz is taking the
  technology seriously enough to lead a $10 million round of funding at a
  valuation of $75 million. The venture capital firm [44]wrote about its
  reasons for investing in Rewind, posing the product as a cure for
  information overload.

  Currently, the Rewind product is not publicly available, but anyone
  interested can request "Early Access" on the Rewind website. We reached
  out to Rewind and asked for a chance to try the software.

  [45]Expand full story

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  [51][benj_ega_small.png]

  [52]Benj Edwards / Benj Edwards is an AI and Machine Learning Reporter
  for Ars Technica. For [53]over 16 years, he has written about
  technology and tech history for sites such as [54]The Atlantic,
  [55]Fast Company, [56]PCMag, PCWorld, Macworld, [57]How-To Geek, and
  Wired. In 2005, he created [58]Vintage Computing and Gaming. He also
  hosted The Culture of Tech podcast and contributes to Retronauts.
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