Computers can't adapt on there own, like our brains. Computers have limited numbers of inputs. windows 98 can only do so much before it's obsolete.
I don't believe that our brain is limited. We've know 100% of the brain but we've only discovered what, 10% of our brain is useful for. What we don't know is all the interconnectivity therein lies the biggest part.
I don't think we have telepathy or the ability to move objects or anything. But things like fixing depression or curing alheimers, parkinsons, multiple sclerosis. We can see how these diseases and disorders effect the brain but they aren't curable, you can treat the symptoms.
As far as the brain, minus any disabilities one can learn to read or do math. I don't think there's a point where your brain has reached its capacity like "welp this is all the math your going to be able to learn"
While there are some good computers out there they all have there limits, such as
this calculator and this one
They are both calculators but they have different limits in how they can perform.
Although math has been around longer than both of these devices at one point the former was acceptable or adequate. Much like Windows 3.1 was great when it came out but compared to Windows 10 or whatever it's obsolete .
Windows 3.1 can't adapt to today's standards. The brain can, and we as far as our thoughts feelings and actions can change how we interact.
Windows 3.1 probably can't open pdf's definitely can't install iTunes or something.
A persons brain could have been developed in 1310 and if somehow preserved and utilized in 2018 still be able to adapt.