--- title: Five Best Ideas of the Day: March 31 description: How the sharing economy might hurt workers, a glimmer of hope for sharks, crowdfunding Yemen's rebels, the problem with fake meat & more. canonical: https://time.com/3764767/five-best-ideas-of-the-day-march-31/ author: TIME article:opinion: true article:content_tier: free article:published_time: 2015-03-31T16:01:49.000Z article:modified_time: 2026-05-11T05:04:47.097Z article:section: Ideas og:title: These Are Today's Best Ideas og:description: How the sharing economy might hurt workers, a glimmer of hope for sharks & more og:url: https://time.com/3764767/five-best-ideas-of-the-day-march-31/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde093bcdab65f2d0/6988d9b9bc6cfc69913e2a3c/time-logo.jpg?branch=production og:image:width: 1200 og:image:height: 675 og:image:alt: TIME og:type: article twitter:card: summary_large_image twitter:title: These Are Today's Best Ideas twitter:description: How the sharing economy might hurt workers, a glimmer of hope for sharks & more twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltde093bcdab65f2d0/6988d9b9bc6cfc69913e2a3c/time-logo.jpg?branch=production --- # Five Best Ideas of the Day: March 31 by [The Aspen Institute](https://time.com/author/the-aspen-institute/) ## The Aspen Institute Mar 31, 2015 4:01 PM UTC by [The Aspen Institute](https://time.com/author/the-aspen-institute/) ## The Aspen Institute Mar 31, 2015 4:01 PM UTC **1\.** [**Is the sharing economy opening the door for big business to abuse contract workers?**](http://techcrunch.com/2015/03/28/a-farewell-to-jobs/) By Jon Evans in TechCrunch **2\.** [**With fins off many menus, scientists see a glimmer of hope for sharks.**](http://e360.yale.edu/feature/with%5Ffins%5Foff%5Fmany%5Fmenus%5Fa%5Fglimmer%5Fof%5Fhope%5Ffor%5Fsharks/2857/) By Ted Williams in Yale Environment 360 **3\.** [**The Houthi rebels in Yemen are following the ISIS playbook and crowdfunding their revolt online.**](http://www.vocativ.com/world/yemen-world/houthi-rebels-crowd-funding-their-yemen-takeover/) By Vladi Vovchuk in Vocativ **4\.** [**It might be possible to create a non-meat burger that helps the environment and improves your health. But will it taste good enough to win over the masses?**](http://www.technologyreview.com/review/536296/the-problem-with-fake-meat/) By Corby Kummer in MIT Technology Review **5\.** [**Medicaid may not be a slam dunk for physical health, but it yields huge returns in quality of life.**](http://www.mailman.columbia.edu/news/medicaid-very-good-investment-even-if-it-does-not-lower-cholesterol-blood-pressure-or-blood-s-0) By the Mailman School of Public Health at Columbia University  [_The Aspen Institute_](http://www.aspeninstitute.org/) _is an educational and policy studies organization based in Washington, D.C._ ```json [{"@context":"https://schema.org","@type":"OpinionNewsArticle","@id":"https://time.com/3764767/five-best-ideas-of-the-day-march-31/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/3764767/five-best-ideas-of-the-day-march-31/"},"headline":"Five Best Ideas of the Day: March 31","datePublished":"2015-03-31T16:01:49.000Z","dateModified":"2026-05-11T05:04:47.097Z","description":"How the sharing economy might hurt workers, a glimmer of hope for sharks, crowdfunding Yemen's rebels, the problem with fake meat & more.","url":"https://time.com/3764767/five-best-ideas-of-the-day-march-31/","keywords":["Innovation","Sharks","Food","poverty","Inequality","meat","Ocean","Medicaid","sharing economy","cost"],"thumbnailUrl":"","author":[{"@type":"Person","name":"The Aspen Institute","jobTitle":null,"url":"https://time.com/author/the-aspen-institute/"}],"articleSection":"Ideas","image":[],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/ideas/","name":"Ideas"}},{"@type":"ListItem","position":2,"item":{"@id":"/tag/innovation/","name":"Innovation"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/3764767/five-best-ideas-of-the-day-march-31/","name":"Five Best Ideas of the Day: March 31"}}]}] ```