The Mankind but Not the Computers
When all the axons and dendrites in neurons (brain cells; between 100 billion and 200 billion in total) in the whole brain are extended linearly in a straight line, their total length will be one million kilometers.
For example, the distance between the moon and the earth is 384,400 kilometers (or about 0.4 million kilometers). Our brain has connection length of brain cells longer than the round trip length between the moon and the earth.
Note: A neuron or nerve cell, is an electrically excitable cell that communicates with other cells via specialized connections called synapses.
https://en.wikipedia.org/wiki/Neuron
On the other hand, the recent CPU of a personal computers has about 10 billion transistors. However, one transistor can be placed at an interval of a nano-meter (one billionth of a meter). The total length of transistor connecting wires in a CPU seems to be less than 100 meters.
Compared to the CPU of a personal computer, our brain has 10,000,000 times larger connection of brain cells. So, if we start to use a personal computer with 10 million times advanced performance, the computer may have its own self-consciousness.
(However, when the CPU of a computers comes to have transistors in the quantity between 100 billion and 200 billion, it may be able to simulate a human brain with cells in the quantity between 100 billion and 200 billion.)
But it is unlikely that such an advanced computer can understand the God, since it must first understand who designed its artificial intelligence software, namely the mankind.
The concept of the God and the spiritual world must be still unique to the mankind, since the God created the mankind but not the computers.
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Luk 2:11 For unto you is born this day in the city of David a Saviour, which is Christ the Lord.
Luk 2:12 And this shall be a sign unto you; Ye shall find the babe wrapped in swaddling clothes, lying in a manger.
Luk 2:13 And suddenly there was with the angel a multitude of the heavenly host praising God, and saying,
Luk 2:14 Glory to God in the highest, and on earth peace, good will toward men.