Reletter
Artwork for MUUSINGS from an entrepreneur trying to make sense of the world.

MUUSINGS from an entrepreneur trying to make sense of the world.

Michael Sonnenfeldt

As an entrepreneur and investor, it is critical to try to make sense of the world and the forces that are impacting the economy, our lives and our future. Everything is fair game!

Platform
Substack
PricingOnly free issuesPublishesWeekly
Issues5Foundeda year agoLast Issuea month ago
Active

Read this Newsletter

michaelsonnenfeldt.substack.com
Artwork for MUUSINGS from an entrepreneur trying to make sense of the world.

Latest Issues

What Climate Investing Really Looks Like in America Right Now

In the fall of 2024, PBS spent time exploring TIGER 21’s Climate Investment Network (one of 39 such TIGER 21 networks) to document how capital, infrastructure, and renewable energy innovation are unfolding across the United States—not in th...

a month ago
14

I exited one of the NYC area’s biggest real estate deals at 31. Here’s what I learned

Published March 12, 2026

Is it luck when an entrepreneur hits big? It is not the lottery, but the returns can feel like it.

I learned this early. At 31, I exited one of the most successful real estate deals in Metropolitan New York histor...

2 months ago
3

NEXT Podcast Season 2 Episode 5 Joe Neiman DealerClub CEO

For Episode 5 of NEXT, Michael sits down with Joe Neiman, a serial entrepreneur in the automotive technology space, to explore the inner journey behind Joe’s success—one shaped by a drive to confront fear, challenge limiting beliefs, and co...

2 months ago
12

Trump’s War: A War of Weapons or a War of Wills?

Iran’s nuclear ambitions, its rapidly expanding ballistic missile arsenal, and its sustained support for proxy wars and terrorism constituted a real and grave threat to Israel, the United States, and the regional order. Tehran has been expl...

2 months ago
24
3

MY FIRST SUBSTACK

Over the years I have occasionally shared personal reflections with a small mailing list of friends and colleagues. Many of you have written back with thoughtful responses, which has encouraged me to keep going. To make those conversations...

2 months ago
8
8

Key Facts

Contact Information
Newsletter Author
Number of Subscribers
Find out how many people subscribe to this newsletter.

Audience Metrics

Subscribers, engagement, traffic and sponsorship for MUUSINGS from an entrepreneur trying to make sense of the world..

SubscribersEngagement72Monthly Web Visits
Accepts SponsorsEstimated Cost per Ad

Chart Rankings

How this newsletter ranks in the official Substack charts.

Authors

The writers behind this newsletter.

  • Michael Sonnenfeldt
  • Frequently Asked Questions

    How can I access the email archive for this newsletter?

    You can find recent issues that have been published by this newsletter on Reletter by scrolling up to where it says Latest Issues. Tap on the link for any of the most recent emails or hit More Issues to see older ones.

    How many subscribers does this newsletter have?

    To see how many people subscribe to this newsletter, simply upgrade your Reletter account. We provide readership numbers and lots of other stats for this newsletter so you can decide if it's worth reaching out to.

    How can I advertise in this newsletter?

    Newsletter advertising can be extremely effective when it's done right. Before you pitch this newsletter as a potential sponsor or partner, make sure that you've done your research and checked its newsletter stats with Reletter.

    Then, personalize one of our winning pitching templates and send it to the right person using the contact info provided.

    How much does it cost to sponsor a publication like this newsletter?

    Newsletter ad rates (or CPM) vary depending on many factors, including industry, number of subscribers, open rate, ad placement and more.

    To find out how much an ad will cost, contact this newsletter using the contact information provided and ask for a copy of their media kit.

    How can I find newsletters related to this newsletter?

    Scroll up to where it says Related Newsletters to see other publications like this newsletter. You can also search our email newsletter directory to discover other newsletters that cover the topics you're interested in.

    How do I contact this newsletter?

    Reletter provides this newsletter's website URL above, where you will often find their contact information. We also provide links to associated social media accounts and pitching templates so you can reach out fast.