Question:
Architects are a British metalcore band from Brighton, East Sussex. The band currently consists of vocalist Sam Carter, drummer Dan Searle, bassist Alex Dean and guitarists Adam Christianson and Josh Middleton. The band's first name was Inharmonic, which was swiftly changed to Counting the Days, and finally to Architects after a couple of years. They have released seven studio albums and one split EP with Dead Swans to date.
Architects have been referred to as being "pumped with both controlled rage and unhindered heart, accessible and ambitious, aggressive and beautiful". Considered alongside Enter Shikari as offering metalcore style to more mainstream audiences they have been described as metalcore, technical metal and progressive metalcore. Their music is characterised by choppy, complex guitar riffs, the use of obscure time signatures and rhythmic breakdowns, and for their guitarists alternating between a "down-tuned rumble" and "melodic punk" during songs. However the band's music isn't solely based upon technical proficiency and does use catchy riffs and choruses. Architects have made various stylistic transitions and evolutions throughout their career, with the band citing their belief that each album should be distinct. On their second album Ruin, the band's sound was heavier and darker sound than on Nightmares. Hollow Crown maintains the aggression and technical proficiency of Ruin while incorporating more melody, catchy riffs and use of singing. The band also used synthesised instruments such as keyboards and drum machines. The guitars were tuned to Drop B with the lowest string at Ab, giving the "ability to create a really heavy low end sound on the bottom but still give a comfortable degree of tension on the higher strings." A prime example of their signature style is the song 'We're All Alone', with its technical, progressive guitar riffs and heavy, hardcore punk-influenced rhythmic breakdowns. Their fourth album 'The Here and Now' represented a stylistic shift from their previous work considered "ultimately subjective" and "their most diverse". Described as going in a "clean-cut post-hardcore" direction, The Here and Now favours singing over screaming, anthemic choruses and hooks. The album still retains elements of their previous albums, however, including "tortured howls, frenzied riffs, and earth-shattering rhythms, albeit with a slightly more mainstream edge." The album includes the melancholy, glitchy electronica-based 'An Open Letter To Myself' and the rock ballad 'Heartburn' both lead into "rousing, fist-pumping choruses". The band's fifth album Daybreaker featured something of a return to the heavier, more aggressive style of their previous albums, balancing this with the melody and hooks of The Here and Now. Daybreaker also features even more melodic, atmospheric tracks than usual, such as 'Truth Be Told, 'Behind The Throne' and 'Unbeliever'. After the release of Daybreaker the band grew confident in playing much heavier music again, and cited that the key influence on the heavier style of their sixth album was to create the best songs for live shows. The album also incorporates blastbeats, which have not been used in any of the band's recordings since Hollow Crown.
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How has their style evolved?

Answer:
Their fourth album 'The Here and Now' represented a stylistic shift from their previous work considered "ultimately subjective" and "their most diverse".

Answer the question at the end by quoting:

Barack Hussein Obama II ( ( listen); born August 4, 1961) is an American politician who served as the 44th President of the United States from 2009 to 2017. The first African American to assume the presidency, he was previously the junior United States Senator from Illinois from 2005 to 2008. Before that, he served in the Illinois State Senate from 1997 until 2004. Obama was born in 1961 in Honolulu, Hawaii, two years after the territory was admitted to the Union as the 50th state.
Obama was born on August 4, 1961, at Kapiolani Medical Center for Women and Children in Honolulu, Hawaii. He is the only President who was born in Hawaii and the only President who was born outside of the contiguous 48 states. He was born to a white mother and a black father. His mother, Ann Dunham (1942-1995), was born in Wichita, Kansas; she was mostly of English descent, with some German, Irish, Scottish, Swiss, and Welsh ancestry. His father, Barack Obama Sr. (1936-1982), was a married Luo Kenyan man from Nyang'oma Kogelo. Obama's parents met in 1960 in a Russian language class at the University of Hawaii at Manoa, where his father was a foreign student on scholarship. The couple married in Wailuku, Hawaii on February 2, 1961, six months before Obama was born. In late August 1961 (only a few weeks after he was born), Barack and his mother moved to the University of Washington in Seattle, where they lived for a year. During that time, the elder Obama completed his undergraduate degree in economics in Hawaii, graduating in June 1962. He then left to attend graduate school on a scholarship at Harvard University, where he earned an M.A. in economics. Obama's parents divorced in March 1964. Obama Sr. returned to Kenya in 1964, where he married for a third time. He visited his son in Hawaii only once, at Christmas time in 1971, before he was killed in an automobile accident in 1982, when Obama was 21 years old. Recalling his early childhood, Obama said, "That my father looked nothing like the people around me - that he was black as pitch, my mother white as milk - barely registered in my mind." He described his struggles as a young adult to reconcile social perceptions of his multiracial heritage. In 1963, Dunham met Lolo Soetoro at the University of Hawaii; he was an Indonesian East-West Center graduate student in geography. The couple married on Molokai on March 15, 1965. After two one-year extensions of his J-1 visa, Lolo returned to Indonesia in 1966. His wife and stepson followed sixteen months later in 1967. The family initially lived in a Menteng Dalam neighborhood in the Tebet subdistrict of south Jakarta. From 1970, they lived in a wealthier neighborhood in the Menteng subdistrict of central Jakarta.

what did he study?
economics.