Hacks at the Massachusetts Institute of Technology are practical jokes and pranks meant to prominently demonstrate technical aptitude and cleverness, and/or to commemorate popular culture and political topics. The pranks are anonymously installed at night by hackers, usually, but not exclusively, undergraduate students. The hackers' actions are governed by an informal yet extensive body of precedent, tradition and ethics. Hacks can occur anywhere across campus, and occasionally off campus; many make use of the iconic Great Dome, Little Dome, Green Building tower, or other prominent architectural features of the MIT campus.

The most well-known hacker is Richard Stallman, winner of the MacArthur Prize and initiator of the free software movement. Well-known hacker alumni include Nobel Laureates Richard P. Feynman and George F. Smoot. In October 2009, US President Barack Obama made a reference to the MIT hacking tradition during an on-campus speech about sustainable energy.President Barack Obama at MIT, Oct. 2009 - https://www.youtube.com/watch?v=68k-oKAWjto In recent years, MIT students have used hacks to protest MIT's collaborations with fossil fuel companies as well as the Israeli military and arms suppliers during the Gaza genocide.

History and commemoration

Although the practice is unsanctioned by the university, and students have sometimes been arraigned on trespassing charges for hacking, hacks have substantial significance to MIT's history and student culture. Student bloggers working for the MIT Admissions Office have often written about MIT hacks, including those occurring during Campus Preview Weekend (CPW), an event welcoming admitted prospective freshman students. Alumni bloggers on the MIT Alumni Association website also report and document some of the more memorable hacks. Since the mid-1970s, the student-written guide How To Get Around MIT (HowToGAMIT) has included a chapter on hacking, and discusses history, hacker groups, ethics, safety tips, and risks of the activity.

For a decade, the MIT Museum included a "Hall of Hacks" featuring famous MIT hacks, but the section was closed in 2001, temporarily returning for a 2003 exhibition. In 2011, the display space was reallocated to the MIT 150 exhibition, a year-long show commemorating MIT's 150th anniversary. Although hacks were not featured in the exhibit, certain student activities such as the Annual Baker House Piano Drop were featured in the exhibition. The Museum's extensive collection of hacker artifacts and documentation continues to be preserved and expanded, with a selection of larger relics from past hacks plus explanatory panels and plaques semi-permanently displayed inside the Stata Center. This mini-exhibit on hacks is located on the ground floor of the Stata Center, near the cafeteria at the southeastern end of the complex, and may be viewed by visitors during normal office hours.

Famous hacks include a weather balloon labeled "MIT" appearing at the 50-yard line at the Harvard/Yale football game in 1982, the placing of a campus police cruiser on the roof of the Great Dome, converting the Great Dome into R2-D2 or a large yellow ring to acknowledge the release of Star Wars Episode I and Lord of the Rings respectively, or placing full-sized replicas of the Wright Flyer and a fire truck to acknowledge the anniversaries of first powered controlled flight and the September 11 attacks respectively.

Terminology

At MIT, the terms hack and hacker have many shades of meaning, though they are closely linked historically and culturally with computer hacking (in its original non-computer-cracker sense), collegiate practical jokes, and even culture jamming. The origin of this usage is unknown, but it seems to have been widespread at MIT by the 1960s, and the hacker ethic has since spread into cyberculture and beyond. Over time, the term has been generalized to describe anybody who possesses great technical proficiency in any particular skill, usually combined with an offbeat sense of humor. Spectacular pranks are the most visible aspect of this hacker culture to the world at large, but many hacker subcultures exist at MIT, and elsewhere.

Roof and tunnel hacking, a form of urban exploration, is also related to but not identical to "hacking" as described in this article. Some hacks do involve overcoming barriers to physical access (e.g. placing a half-scale Apollo Lunar Module atop the Great Dome), but many other stunts do not require such specialized skills.

Cultural aspects Viewed from an anthropological perspective, hacking is a cultural tradition affirming group solidarity, but some hacks can also be viewed as individualistic creative or artistic expression. For example, the "Massachusetts Toolpike" hack was a clear instance of installation art or environmental art. Hacks which involve staged public actions (e.g. a zombie march or the Time Traveler Convention of 2005) are clearly a form of performance art, often combined with body art and cosplay. Still other hacks have a strong conceptual art flavor, often satirizing other purported works of conceptual art. Sometimes the boundaries have been deliberately blurred, for example when a satirical work of "conceptual art" (No Knife: a study in mixed media earth tones, number three) was surreptitiously added to a "serious" art gallery show at the List Visual Arts Center.

"Tribute", "memorial", or "commemorative" hacks note the arrival, passing, or anniversary of some noteworthy person, tradition, institution, or idea (e.g. the 10th anniversary of Wikipedia). Another broad category of hacks contains strong elements of social commentary or street protest (e.g. "Nth Annual Spontaneous Tuition Riot") about events on campus or in the world at large. But the strongest element of many hacks is the sheer joy of conceptualizing something new, and then reifying it with effective engineering, both technical and social (e.g. installing a full-sized mockup solar-powered subway car on the parapet wall around the base of the Great Dome, and then driving it back and forth under remote wireless control from Killian Court, some five stories below, after sundown).

Like most art exhibitions, the great majority of hacks are temporary installations; most are removed within a day or so by MIT Physical Plant, the MIT Confined Space Rescue Team (CSRT), or occasionally by the hackers themselves. It is a traditional courtesy to leave a note or even engineering drawings behind, as an aid to safe de-installation of a hack. Sometimes, the hacks have been de-installed so quickly that members of the MIT community and the general public have had little opportunity to view them. On very rare occasions, community protests have caused the MIT administration to quietly allow a hack to be re-installed and left for a proper viewing interval. The results of certain hacks (often wall murals) have been considered "permanent improvements" to the campus environment, and have been left in place indefinitely, most notably the "Smoot marks" on the Harvard Bridge. The MIT Museum maintains an extensive collection of original hacker artifacts and documentation, and displays some larger items semi-permanently in the Stata Center.

Although many traditional college pranks have involved maximizing embarrassment or inconvenience for a victim or target, often with a personal or political point to make versus harassment, such antics are usually disparaged by MIT hackers as "unimaginative" or "boring". Often the target of a hack is an abstract concept (e.g. bureaucracy or political correctness, or entropy), and the prank may or may not be aimed at any specific individual. Even when an individual is targeted (e.g. the "disappearing office" of newly arrived MIT President Charles Vest), the jest is good-natured, often eliciting admiration rather than anger from the "victim".

Writers for the third-party, independent Internet prankster site Zug once compared humorous responses at MIT and Harvard, by posting similar banners over main entrances to their respective campuses which proclaimed "Institute of Nowlege". Regarding Harvard, they concluded, "The question: is the sense of humor still alive in modern-day Harvard students? The answer, it turns out, is no." Regarding MIT, they said, "So it's official: MIT students have a better sense of humor, hands down, than Harvard students. MIT students are more imaginative, more fun-loving, and probably smarter as well. Truly, MIT is the Institute of NOWLEGE." The Zug pranksters also noted and documented great differences in the reactions of campus police, maintenance workers, and passersby, upon seeing the ironically punned banners.

MIT hacks can push the limits of technical skill, and sometimes fail in spite of meticulous planning. Even these engineering failures have been acknowledged to have educational value, and sometimes a follow-up attempt succeeds. One hack on the Great Dome is documented as having finally succeeded on the fourth try, after a complete re-engineering of both the installed artifact and the installation method.

Smaller projects that can be completed by an individual student are sometimes accorded the honorific "a great hack" by other students, if they combine technical elegance with a hackish sense of humor. For example, an MIT undergrad transformed an ordinary grocery shopping cart into a high-performance electric vehicle, and was frequently seen riding around campus in his "LOLrioKart". The shopping cart had a claimed top speed over , and also had a complex steering wheel linkage and a low turning radius for maneuverability in tight spaces. The student was a strong advocate of the Open Source Hardware philosophy, and incorporated detailed documentation of his projects and a tutorial on building custom wheel hub motors in his blog. The ersatz vehicle was prominently displayed at many MIT events, as well as at the Cambridge Science Festival. As a crowning mark of recognition by the outside world, the LOLrioKart driver once received a traffic ticket from the Cambridge Police, a copy of which was proudly displayed online.

Some of the most successful large-scale hacks (e.g. the Caltech cannon heist) have involved multiple teams of hackers working on coordinated but diverse subtasks such as fund-raising, "social engineering", rigging, transportation logistics, gold electroplating, and precision numerical controlled machining, calling on a wide range of technical and management skills. Some hacker teams have gone on to found start-up business ventures, though they may be reluctant to reveal their earlier exploits until many years have passed.

Famous hacks One classic hack occurred on May 9, 1994, involving a police car with its flashing warning lights operating. The unusual aspect of this hack was its position—on top of MIT's Great Dome. The car was found to be a gutted, junked, heavy Chevrolet Cavalier, painted meticulously to match the MIT Campus Police patrol cars. The car's number was pi. Its license plate read "IHTFP", the abbreviation for MIT's unofficial slogan. A dummy dressed as a campus patrolman was seated inside with mug of coffee and a box of donuts. Some years later, the police car has now been semi-permanently re-installed in the Stata Center as an all-time classic.

Due to MIT's proximity to Harvard, many hacks involve the annual Harvard–Yale football game. Because of the Cambridge rivalry between MIT and Harvard, hackers often are found at the games, and they have come up with some of the most famous hacks in the Institute's history.