The main character died, and they are transported into another world. Before they are sent by the deity to the other world, he is given overpowered skills. The main character is also given a game-like functions like map, inventory, and status.
The world is mostly in the medieval period, the country that the main character lands in is also in the medieval period, socially and technologically. This world also has magic.
Magics here are like a computer programs that affect the physical world. They can also be treated as functions which you can combine together into a bigger magic. Particularly high levelled magicians can make magic by imagining, but magic created this way consumes way more mana.
The main character can freely make magic using both methods.
How long will advancing a medieval period country to a spacefaring intergalactic country take for the main character in terms of years, given other aspects of society other than the technological aspect?
In response to the comments, I’m sorry for not giving much details, but I will clarify, and add other additional information that I didn’t think to include.
The two main skills the main character is given are Increased Growth Rate and Absolute Disassembly.
Increased Growth Rate overrides the main character’s experiences gain increase to increasing strictly at an exponential rate for every kill he does. The experience required is always 1 EXP.
Absolute Disassembly disregards the drop tables of monsters and makes it so they always drop their rarest drops and maximum amount of money regardless of the LUK stat of the person.
Additionaly skills the main character got are search, analyze, map, inventory, and status, all put neatly organized into a menu.
They also gets their smartphone that is now connected to the Library of Alchias, which is a library with all of the knowledge in all of the multiverse. Of course with the infinite vastness of the multiverse, The Library of Alchias is set to displaying information gotten from Earth and Satna’andaz (the name of the world the main character is sent to), and current world. The information available includes all of physics and the human made mathematics for it, all of the knowledge humankind of Earth and Satna’andaz, and all of the things humans do not know. It is also wirelessly conntected to a headset with headphones and visor.
They also gets an AI companion that is now residing in their smartphone. The AI can access all of the functions of the smartphone, including the Library of Alchias, and the main character’s menu.
The their phone is also going to be the living space of the deities they will ‘collect’ across their journey in Satna’andaz.
Early on, the main character learnt Instant Learning and Eidetic Memory skills, so he can understand and memorize even the most advanced of physics equations even if they have only seen it for the first time. The main character also instantly learns (but not masters) skills by doing them once, but thet do not master them instantly.
Every level up, the main character gets magicraft points, which they can use to level up skills. Skills can be mastered two ways: by repeatedly doung them, or by spending magicraft points on them.
For beginners, magic is invoked by imagining the phenomena, chanting the associated spell, and pointing a wand at the target, for master magicians, they can invoke magic without doing any of those. A simple Move magic that moves objects over a distance over some speed takes 1 mana/kg*m/sec A CreateTower magic that creates a typical 10 story building takes about 1, 000, 000 mana if the magic is created using imagination, if the magic is created by composition, the cost depends on how efficient other magics are used to compose this magic, at best it can be 1, 000 mana. But making an X-fighter type spacecraft with FTL capadpbilities is relatively easy if the magician has appropriate knowledge of General Relativity, and other related fields of physics. Magic can be used to break the laws of physics, but the mana cost becomes impossible to overcome. It also allows people to go from one universe to the other, given enough mana.
Magic can be casted and enchanted to objects. The difference is that casting just makes it so that the magic is toggleable, and requires active activation by the user, enchanting is where the magic is always on, until the source of mana (usually the user) is removed or depleted. Magic that can be casted or enchanted to objects are dependent on the object, i.e. one cannot cast FireProjectile to a sword, unless the blade is detachable. Activation of the magic casted or enchanted to objects requires the same amount as invoking it directly. There is a magic called Program, where one can program the functions of the object, and make the magic casted or enchanted to the object interact with one another. Program can also instruct an object to do things within their capabilities, i.e. objects that have no wings or do not have Fly enchanted on them cannot be instructed to fly.
Mana replenishes naturally by the body. Anything with life can generate and replenish mana. The rate is dependent on the INT stat, the higher it is, the more mana one has, the faster it replenishes. Magic is usable by any life form. However, magicians in society are trained elites. They require heavy testing for licensure before being able to take societal jobs, like healing and construction. Tests include theoretical and practical. Being elites, magicians are highly sought after, and the pay is high. The creates animosity with people that cannot use magic to solve the problems in various fields. Anyone can use magic, but not everyone can become a magician. Adventurers also can use magic, but only in dungeons for their livelihood. Adventurers do not have as strict of a licensure test. Anyone can become one.
The main character’s goal is to make magic tools that anyone can use regardless of training and mana availability, and disseminate them throughout the country and then the world. They do so by enchanting and casting magic to objects, and making a a source of mana that contains enough to power the tool reliably for a long time.
Creating magic is considered to be the magnum opus of a magician, because of having to train their imagination to picture the phenomena they want to conjure up, i.e. the more imaginative the magician is, the better their chances at making a new magic. This means they are also scientists, because they require knowledge to be able to reliably imagine what the phenomena they want. It is also dependent on the INT of the magician. The main character can create new magics reliably because of their absurdly high INT stat, modern knowledge, access to the Library of Alchias, and Instant Learning skill.
In this world all of the Middle Ages of Earth occurs at the same time, but at different parts. The country where the main character is in is akin to 10th century HRE. The continent he is in is akin to 10th century Europe. There is a country that is akin to Middle Ages Egypt. The goal really is intergalactic, i.e. they have explored every planet and star system in the galaxy, have established diplomacy with ones with civilizations, and they can interact with, and go to neighboring galaxies within its local group. No need for conquering the entire home galaxy.
I want a realistic rough estimation please!
The main character also teaches the principle behind the tools they make, and how to create them from the ground up.