You asked, he answered!

Raspberry Pi founder and CEO Eben Upton has responded to questions submitted by Slashdot readers. Read on for his answers.

You asked, he answered!

Ruby on Rails Creator and founder/CTO of Basecamp, David Heinemeier Hansson has responded to questions submitted by Slashdot readers. Read on for his answers.

You asked, he answered!

VideoLan President and Lead Developer of VLC Jean-Baptiste Kempf has responded to questions submitted by Slashdot readers. Read on to find out about the upcoming VideoLAN projects; how they keep VLC sustainable; what are some mistakes they wish they hadn't made; and what security challenges they face, among others!

It's been roughly five years since we last interviewed the founder and CEO of Raspberry Pi (Trading) Ltd., Eben Upton. Eben currently serves as a technical director and ASIC architect for Broadcom. He founded the Raspberry Pi Foundation in 2009 to develop and market a $25 microcomputer for education. He has also founded two successful mobile games and middleware companies, Ideaworks 3d Ltd. and Podfun Ltd., and served a Director of Studies for computer science at St. John's College, Cambridge. Ebon has agreed to take some time out of his busy schedule and answer some of your questions.

You may ask Eben as many questions as you'd like, but please, one per comment. We'll pick the very best questions and forward them to Eben Upton himself. (Feel free to leave your suggestions for who Slashdot should interview next.)

Go on, don't be shy!

VLC remains one of the most popular applications. First released over 15 years ago, VLC is open-source, and is available across multiple platforms including Windows, OS X, Linux, Android, ChromeOS, iOS, and it's coming to the Xbox One later this year. We thought it would be great to have Jean-Baptiste Kempf, President of VideoLAN non-profit organization (the maker of VLC media player). In addition, he is also a lead developer of VLC.

Leave your questions in the comments section below. Let's get this going.

David Heinemeier Hansson created the Ruby on Rails open-source web framework in 2003. David is also the founder and CTO of Basecamp, a project management tool that's been used by more than 15 million people. In addition, David is the best-selling author of REWORK, a book about starting and running businesses a better way. David has agreed to take some time to answer some of your questions.

Ask as many questions as you'd like, but please, one per comment. (And feel free to also leave your suggestions for who Slashdot should interview next.) We'll pick the very best questions -- and forward them on to David Heinemeier Hansson himself.

You asked, he answered!

Perl creator Larry Wall has responded to questions submitted by Slashdot readers. Read on for his answers...

Larry Wall created the Perl programming language (as well as the Unix utility patch, and the Usenet client rn ). This Christmas saw the release of Perl 6 -- a "sister" language to the original Perl -- that's also free and open source, after 15 years of development. Now Larry has agreed to give some of his time to answer your questions (joking that "I doubt my remarks will be quite as controversial as, say, Donald Trump's, but I suspect I could say an interesting thing or two...")

Larry also gave one of Slashdot's very first interviews back in 2002 -- so it's high time we had him back for more heartfelt and entertaining insights. Ask as many questions as you'd like, but please, one per comment. (And feel free to also leave your suggestions for who Slashdot should interview next.) We'll pick the very best questions -- and forward them on to Larry Wall himself.

Last week you asked questions of Ubuntu Unleashed author Matthew Helmke, about everything from system D to the future of Ubuntu and Canonical; he's responded, at length. Read on for Matthew's answers.

Matthew Helmke (personal blog) is the author of the newly published 11th edition of Ubuntu Unleashed (published by Pearson); this updated edition of the book will cover the OS through Ubuntu's 15.10 and (forthcoming) 16.04 releases. Helmke is also a former Ubuntu Forum administrator, a musician, an entrepreneur, and a long-time Slashdot reader who now leads a "nice quiet life in Iowa." Ask Matthew about what it's like to be a Linux book author and community leader, and his thoughts on Canonical, the goods and bads of modern Linux distributions, and the future of Ubuntu -- especially relevant with the upcoming release of the first Ubuntu-based tablet. (Remember, Matthew isn't responsible for gripes you may have with either Ubuntu or Canonical, but he might have some good solutions to particular problems.) Ask as many questions as you'd like; we just ask that you keep them on-topic, and please stick to one question per post.

Anant Agarwal is a professor of Electrical Engineering and Computer Science at MIT and the CEO of edX. A massive open online course platform founded by MIT and Harvard, edX offers numerous courses on a wide variety of subjects. As of 2014 edX had more than 4 million students taking more than 500 courses online. The organization has developed open-source software called Open edX that powers edX courses and is freely available online. Mr. Agarwal has agreed to take some time out of his schedule and answer your questions about edX and the future of learning. As usual, ask as many as you'd like, but please, one question per post.

samzenpus writes: David J. Peterson is a language creator and author. He created the Dothraki and Valyrian languages for HBO's Game of Thrones, and more recently has created languages for the CW's The 100 and MTV's The Shannara Chronicles. His new book, The Art of Language Invention, details how to create a new language from scratch, and goes over some of the specific choices he made in creating the languages for Game of Thrones and Syfy's Defiance. David has agreed to give us some of his time to answer any questions you may have. As usual, ask as many as you'd like, but please, one question per post.

Ray Kurzweil is one of the world’s leading authors, inventors, and futurists. Kurzweil was the principal inventor of the first CCD flat-bed scanner, the first omni-font optical character recognition, the first print-to-speech reading machine for the blind, the first text-to-speech synthesizer, the first music synthesizer capable of recreating the grand piano and other orchestral instruments, and the first commercially marketed large-vocabulary speech recognition. Among Kurzweil’s many honors, he received the 2015 Technical Grammy Award for outstanding achievements in the field of music technology; he is the recipient of the National Medal of Technology, was inducted into the National Inventors Hall of Fame, holds twenty honorary Doctorates, and honors from three U.S. presidents. He has given us some of his time to answer any questions you may have. As usual, ask as many as you'd like, but please, one question per post.

Mike Godwin worked as the first staff counsel of the EFF and served as general counsel for the Wikimedia Foundation. He has been a contributing editor of Reason magazine and was elected to the Open Source Initiative board in 2011. Mike is probably best known however for coining the internet adage Godwin's Law. He is currently general counsel and director of innovation policy at the R Street Institute. Mike has given us some of his time to answer any questions you may have. As usual, ask as many as you'd like, but please, one question (and one comparison involving Nazis or Hitler) per post.

A few weeks ago you had a chance to ask author, entrepreneur, and software developer Jeff Atwood about founding Stack Overflow and the Stack Exchange Network, as well as his new endeavor, the Discourse open-source discussion platform. Below you will find his answers to your questions.

requerdanos writes: Randall Munroe, the former NASA roboticist and author of the web comic xkcd, spoke with Time magazine after the release of his latest book, Thing Explainer. Sort of. Time asked questions, and Randall's answers were in the form of seven comics that he drew in response. Obligatory xkcd.

A few weeks ago you had the chance to ask Alan Donovan and Brian Kernighan about programming and their upcoming book, The Go Programming Language (available as an eBook Friday the 20th). Below you'll find their answers to your questions.

Jeff Atwood is an author, entrepreneur, and software developer. He runs the popular programming blog Coding Horror and is the co-founder of Stack Overflow and the Stack Exchange Network. In early 2012 he decided to leave Stack Exchange so he could spend more time with his family. A year later he announced his new company the Civilized Discourse Construction Kit, Inc. and the Discourse open-source discussion platform which aims to improve conversations on the internet. Jeff has agreed to give some of his time to answer any questions you may have. As usual, ask as many as you'd like, but please, one question per post.

Considered by many to be one of the most influential mathematicians alive today, Neil Sloane has made major contributions to the fields of sphere packing, combinatorics, and error-correcting codes. He is probably best known for being the creator and curator of the On-Line Encyclopedia of Integer Sequences (OEIS), known simply as “Sloane” by its many users. The repository is over 50 years old and contains over 260,000 sequences.

Neil recently turned 76 but his passion for mathematics remains as strong as ever. Talking about a recent project, he writes: “Back in September I was looking at an old sequence in the OEIS. The sequence starts 1, 12, 123, 1234, 12345, ..., 123456789, 12345678910, 1234567891011, ... The n-th term: just write all the decimal numbers from 1 to n in a row and think of this as a big number. The entry for the sequence had a comment that it is expected that there are infinitely many terms which are primes, but that no prime was known, even though Dana Jaconsen had checked the first 64,000 terms. So I asked various friends and correspondents about this, and people extended the search somewhat. In fact Ernst Mayer has set up a cloud-source project to look for primes in the sequence, and the sequence has now been checked to nearly n = 270,000 without finding a prime. But I am hopeful that a prime will appear before we get to n = 10^6. When a prime is found, as it surely will be, it probably won't be the largest prime known, but it will be close to the record (which is held by the latest Mersenne prime). We may make it into the top ten. It will certainly be the largest known prime which is easy to write down! (Explicitly, I mean. You may know that 2^32582657-1 is prime, but you won't be able to write down the decimal expansion without using a computer).”

Neil has agreed to take some time away from his favorite sequences and answer any questions you may have. As usual, ask as many as you'd like, but please, one question per post.

Alan Donovan is a member of Google’s Go team in New York and holds computer science degrees from Cambridge and MIT. Since 2005, he has worked at Google on infrastructure projects and was the co-designer of its proprietary build system, Blaze. Brian Kernighan is a professor in the Computer Science Department at Princeton University. He was a member of technical staff in the Computing Science Research Center at Bell Labs, where he worked on languages and tools for Unix. He is the co-author of several books, including The C Programming Language, and The Practice of Programming. Recently, the pair have co-authored a soon to be released book titled The Go Programming Language. Alan and Brian have agreed to give us some of their time to answer any questions you may have about the upcoming book, Go, and programming in general. Ask as many questions as you'd like, but please keep them to one per post.