Why don't we see new species all the time?

200,000 years ÷ 25 years/generation = 8,000 generations required for speciation (based on the premise for human evolution).

Bacterial generation time = 1 day, so time for one bacterial population group to speciate = 8,000 days.

Human evolution started with a population group size of 300,000 individuals leading to 1 new species.

Thus, assume the speciating group size is 300,000 individuals.

Number of such potential speciating groups in bacteria = 5 × 10³⁰ ÷ 300,000 = 1.6667 × 10²⁵ groups.

Speciation rate per group = 1 new species every 8,000 days, or 1/8,000 speciations per day per group.

Total new bacterial species per day = (1.6667 × 10²⁵) × (1/8,000) ≈ 2.083 × 10²¹.

200,000 years ÷ 25 years/generation = 8,000 generations required for speciation (based on the premise for human evolution).

Insect generation time = 1 year, so time for one insect population group to speciate = 8,000 years.

Human evolution started with a population group size of 300,000 individuals leading to 1 new species.

Thus, assume the speciating group size is 300,000 individuals.

Number of insects: 10^19.

Number of such potential speciating groups in insects = 10^19 ÷ 300,000 ≈ 3.333 × 10^13 groups.

Speciation rate per group = 1 new species every 8,000 years, or 1/8,000 speciations per year per group.

Total new insect species per year = (3.333 × 10^13) × (1/8,000) ≈ 4.166 × 10^9.

Per day (assuming 365 days/year) ≈ 4.166 × 10^9 / 365 ≈ 1.141 × 10^7 (about 11.4 million).