science

Linus Sebastian

Linus Sebastian is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Linus Sebastian rather than just read about it. In short: Linus Gabriel Sebastian (born August 20, 1986) is a Canadian YouTuber known for his technology-oriented channel Linus Tech Tips. He is the founder and former chief executive officer of Linus Media Group, and chief vision officer of the company, as well as a regular presenter.

Key takeaways

Linus Sebastian belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Linus Sebastian to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Linus Sebastian from memory before moving on to harder problems.

Reference excerpt

Linus Gabriel Sebastian (born August 20, 1986) is a Canadian YouTuber known for his technology-oriented channel Linus Tech Tips. He is the founder and former chief executive officer of Linus Media Group, and chief vision officer of the company, as well as a regular presenter. In the 2000s, Sebastian served as the principal on-camera presenter for the now-defunct Canadian computer retailer NCIX, where he created his flagship channel Linus Tech Tips (LTT) in November 2008. In October 2012, he founded Linus Media Group (LMG), formally launching it in 2013. Sebastian led LMG as chief executive officer until July 1, 2023, when he transitioned to the role of chief vision officer to focus on the company's long-term strategy and creative directions. As of January 20, 2026, Linus Tech Tips has amassed over 16.8 million subscribers and more than 9.6 billion views. Across all his channels, Sebastian has over 32 million subscribers and more than 12 billion views.

Early and personal life Linus Gabriel Sebastian was born on August 20, 1986, and grew up on a hobby farm in Maple Ridge, British Columbia. He was named after Linus Pauling, the Nobel Prize–winning American chemist. He was diagnosed with ADHD as a child. Prior to his technology career, Sebastian briefly worked as a house painter by trade. However, he suffered from suspected depression during his second year of house painting for Student Works and quit his job as a result. Around that time, Sebastian studied at the University of British Columbia. After struggling with calculus, Sebastian was put on scholastic probation, prompting him to change his course subjects to psychology and English. Despite performing better academically, Sebastian questioned the value of his degree and dropped out before graduating, a move supported by his future wife Yvonne Ho, and took up a full time position with the computer store NCIX instead. Sebastian has been married to Ho since April 2011. He is also the father of three children: a son and two daughters.

Career Sebastian worked for the Canadian online computer store NCIX in various roles, including as a sales representative and product manager. He was asked to be the host for its technology YouTube channel, NCIX Tech Tips, which was created to help demonstrate products. Sebastian was assisted by an unidentified cameraperson and editor, and worked with limited resources, shooting videos with a camera borrowed from the son of the company's president. The first NCIX Tech Tips video hosted by Sebastian was uploaded on 24 July 2007. Due to high production costs, rising brand partner demands, and relatively low viewership of NCIX Tech Tips, Sebastian was instructed to create the Linus Tech Tips channel; this would allow Sebastian to produce content more rapidly, initially at a lower production value kept distinct from the NCIX brand. He described TigerDirect and eventually Newegg as competitors. Linus Tech Tips was created on November 24, 2008 and the first video for the channel was uploaded the following day. Seeing the opportunity in online content creation, Sebastian eventually left NCIX and founded Linus Media Group (LMG) following a dispute regarding company management. He negotiated an agreement in which he could keep Linus Tech Tips as a property of LMG for $1, as long as he signed a long-term agreement to help build an in-house NCIX video team, signed a 2-year non-compete clause, and continued to host videos for NCIX at a rate described by him as "very bargain-basement" for 2 years.

In 2020, Sebastian claimed he was thinking about retiring. On May 18, 2023, Sebastian announced that he would be stepping down as chief executive officer of Linus Media Group and its subsidiaries on July 1, 2023. He then transitioned into a role entitled Chief Vision Officer. In August 2023, a controversy emerged after Gamers Nexus, a YouTube channel, published a video about Sebastian and LMG stating that Sebastian had inappropriately demonstrated a prototype water block made by manufacturer Billet Labs by installing it on an Nvidia RTX 4090 GPU for which it was not designed for, rather than the recommended RTX 3090, and questioned the "accuracy, ethics, and responsibility" of the production. LMG was also criticised for failing to return the water block to Billet Labs and instead selling it in a charity auction, which Sebastian said was the result of a "miscommunication". LMG paused video production for 10 days while it investigated the claims. In a response, Sebastian rejected that LMG had an accuracy issue regarding the situation but regretted how it had been handled, and said that LMG would review and improve internal processes. Sebastian was involved in the making of War of the Worlds (2025), working remotely during the COVID-19 pandemic. He was consulted as a technical advisor, and also acted a scene over webcam. Sebastian says the scene was cut from release and the technical advice was ultimately not used to inform the screenplay, and he had requested his name be removed from the official credits.

Notable events

In a 2014 interview with technology startup website Tech.co, Sebastian said that his favourite YouTubers were TotalBiscuit, Marques Brownlee, and Austin Evans. Later, he remarked that he "threw out TotalBiscuit because he was one of the only names of YouTubers [he] knew." Sebastian is an advocate of the right to repair. In September 2021, he disclosed a personal investment of nearly $225,000 in Framework Computer, a manufacturer of modular laptops which embraces this philosophy, after discussing the implications of such investment on LMG's podcast The WAN Show in July 2021. On March 24, 2023, Sebastian declared on the Linus Tech Tips channel, that they had suffered a major session hijacking attack from opening a file containing sponsorship details, which caused them to temporarily lose all of their channels, losing revenue in the process. A video was later published on the Linus Tech Tips channel about the incident explaining that the company had downloaded a Trojan horse in the guise of a PDF file from a seemingly legitimate sponsor email, allowing for the attack. On January 13, 2025, Sebastian made his first guest appearance on The Tonight Show Starring Jimmy Fallon where he demonstrated technology from the 2025 Consumer Electronics Show (CES). He appeared on the show again on January 15, 2026, following CES 2026. On November 30, 2025, Linux creator Linus Torvalds appeared as guest on Linus Tech Tips.

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Linus Sebastian

Start with the simplest possible case. Write down what Linus Sebastian claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Linus Sebastian before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Linus Sebastian ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Linus Sebastian

In research: Linus Sebastian appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Linus Sebastian in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Linus Sebastian is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1986 births, Canadian Internet celebrities, Canadian Twitch (service) streamers, so understanding it makes those chapters shorter.
In everyday life: Look for Linus Sebastian outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Linus Sebastian in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Linus Sebastian means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Linus Sebastian out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Linus Sebastian in simple terms?

Why does Linus Sebastian matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Linus Sebastian?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Linus Sebastian.