This is actually a brilliant observation that deserves a proper answer. You are not wrong about what you are seeing. But what you are describing is exactly how languages disappear without anyone noticing.
Adamawa alone has over 40 documented languages. Bura, Vere, Chamba, Gaanda, Lala, Bacchama, Bata, Marghi and more and no they are not variations as you pointed out.
But most of them are slowly being swallowed by Hausa and Fulani because those are the languages of trade, mobility and survival.
So yes, your Borno security guard speaks Shuwa Arabic and your Sokoto okada man speaks Hausa and they understand each other perfectly. That does not mean only one language exists. It means one language won the economic argument. This is what linguists call language assimilation. The dominant language does not erase the others overnight. It just makes them less useful for daily survival until the younger generation stops learning them entirely.
Now here are the facts. Ethnologue, which is the world's most authoritative database on languages, currently documents 520 living indigenous languages in Nigeria alone. Not dialects. Languages. Nigeria has also already lost 12 indigenous languages or more to extinction. Gone forever.
The Middle Belt is where this becomes undeniable. Plateau State alone has over 50 distinct languages. Keyword "Dinstinct".
Benue has Tiv, Idoma, Igede and more. Taraba has communities that cannot understand their neighbours two villages away without a translator. Your Yoruba example actually proves the point perfectly. The fact that a Yoruba person can move across the Southwest and be understood is evidence of one dominant language absorbing regional variations over centuries. That process happened. It is still happening everywhere else in Nigeria right now.
Now I am willing to bet you have never heard of Hyam, Ngas, Mwaghavul, Berom, Amo, Buji, Sura, Anaguta, or Irigwe from Plateau State. Or Kilba, Huba, Bura-Pabir, and Chibok from Borno. Or Mumuye, Jenjo, Yukuben, and Wurkum from Taraba. Or Tur, Nyandang, Kugama and Taram further into the riverine communities nobody talks about. Or what about Igala, Ebira, Bassange, Bassa-Nge, Kakanda and Oworo from Kogi alone. I have not even touched Rivers, Cross River, Bayelsa, Edo, Ondo, or Nasarawa yet. You want to know exactly where each of these is spoken? You will have to tour Nigeria for that. And I promise you, this country will humble you in ways no map ever could. The 500 languages are not cap. Most of them are just quietly dying (Bura has an estimated 11,000 speakers with most young Bura people now not able to speak the language) while we debate whether they exist. And that is the real conversation Nigeria should be having.
My brother in Amadioha, Mr. Donald Trump quite literally kidnapped a sitting president in January of this year, killing dozens (including innocents) in the process.
Next they killed the Iranian head of state PLUS 150+ little children in the process.
They did this during negotiations.
This shit happened like 2 fucking months ago.
Mr. Man, come, are you sniffing petrol?
Wetin we dey yarn sef...
RIGHT FUCKING NOW they are blocking a tiny island called Cuba.
This blockade has caused babies to die in incubators. Bro babies!
All of this has happened just this year alone.
They are doing this in a futile attempt to slow down the demise of their genocidal, parasitic empire.
... And to buy the US dollar a few more years before the inevitable collapse.
Omo bro they bombed Libya from Africa's best economy and country to a place where you can shop for slaves.
They bombed Iraq for fake WMDs.
They bombed Afghanistan
They bombed Syria.
They are bombing Lebanon and Gaza right now via their blue and white aircraft carrier in the middle east.
China on the other hand is the only reason you and I can afford to use a smartphone. It's the only reason you're not buying your standing fan for 600k or your microwave for 3M
Left to America and Oyibo, you no suppose sabi wetin technology be.
Your entire purpose in life should be to work a mine, a field or a quarry to export raw materials...
...and occasionally star on the cover of their WHO/UNICEF starving African children magazine.
As you dey move so, when you wake up fit be evening.
Do better.
As an adult muslim, I have learnt to stay mute most of the time when people casually joke about my religion, you know,that subtle insult mask as a joke e.g when two people from other religions are discussing,and they say something like.
First person:Ha, igba wo ni won Fe gba awe tan.
Second person: won ni odi igba ti won ba ri osupa.
First person: osupa wo ni, ki won maa tan ara won.
Or
First person: Awe WA nta o.
Second person: Awe so ni won gba, awon ti won ti ji jeun laaro...............more discussion continues.
Me: Act deaf, non interested, and dumb, because my name wasn't called .....life continues.
I pity who take una serious
I press my brother money, my sister press am money, my mama press am. Like 7 days later I need money na him save me
Una no like each other for una family at all
From polo to airport roundabout, a black Benz in front of me parked and a white guy got out, walked straight to the wall just by the roadside (the turn that leads to the airport) and started to pee.
What did I do?
I rolled down and shouted “shame on you man, shame on you!”
So, I’m here to open the light on the occurrence happening in university of Ilorin, college of health sciences. It’s going be a long thread, so follow through to get the full gist.
He is free to do as he wishes. He is probably grieving or in pain and speaking in his own language to what he believes to be the Source of all Creation.
Perhaps he used his ancestor-bequethed brain to decide he doesn't wish to kill others to bury alongside his father just because he was high in rank. Perhaps his wife died in pregancy or his child died before puberty and he didn't want to curse and mutilate their bodies just because that's what his ancestors did to punish people for having an 'unnatural' death. Perhaps his relatives are wicked and engaged in witchcraft or are conniving with kidnappers to kill him for his land, and he has found a safe place to pray for a way out.
You saw a man longing for something with intense emotion and decided to sneer down your self-righteous ancestral nose at him. It's as pathetic as any religious bigotry.
The technology may already exist, but that doesn't mean that Nigeria has it. CFM International, Pratt & Whitney, Rolls-Royce, GE, etc do not share the patents or blueprints behind their jet engines. They only share generalised information and basic operating principles. So as a recipient of that generalised information, you might "know" how a jet engine works, but they will never share what metal alloys they used to make their engines, their design specifications to make it fuel efficient, wind tunnel testing data, safety testing data etc. In reality, you are not much closer to having that technology than a farmer in the 16th century. All you have is the ability to rent temporary access to it by paying money to the manufacturers and their designated maintenance companies.
This means that every jet engine in Africa is foreign-made, and all significant maintenance involving proprietary knowledge on those engines is usually done abroad, which means vast amounts of USD must be spent regularly just to keep Africa's airspace running, and the US government can ground almost every plane in Africa if it likes by issuing sanctions that prevent engine manufacturers or maintenance firms from doing business with African airlines.
That isn't theoretical BTW. It's exactly what happened to Russia in 2022, when NATO sanctions against Russia made Russian Airlines unable to access spare parts and supplies to keep their Boeing and Airbus fleets operational. And that's why Russia accelerated its indigenous Yakovlev MC-21 program, which has created a fully homegrown alternative to the Boeing 737 with indigenous engines, body, and avionics.
Just because a technology exists and you have access to it does not mean that you have the technology, especially when it is a complex technology like aircraft engines. You're basically just renting space on it from the technology owner, and if you have a geopolitical disagreement with the owner, it can lock you out and return you to the stone age at any time. That's why countries often need to "reinvent the wheel."
If Nigeria ever becomes a wealthy and important country in the future, US trade sanctions are 100% guaranteed. To prepare for those inevitable sanctions, multiple technologies that we are currently renting must be fully localised. Not that they impose sanctions and then we realise that we can't build roads anymore because the technology to drive bridge pillar piles into a river bed was something we were just renting from white people. That's why Ziko's jet engine is important. It won't power a passenger aircraft anytime soon, but it provides the technical foundation to even begin that project.
If your country has no Ziko's, then you don't own your country. All of you are just tenants of richer countries.