Carrying Big Buckets of Rocks 

Carrying big buckets of rocks up a steep hill every day for a year can certainly improve your strength and endurance, but it's difficult to compare your strength to someone who lifts weights every day for a year without knowing more details about the specifics of each activity.

Here are a few factors to consider:

1. Type of strength: Carrying heavy loads up a hill primarily works the muscles in your back, shoulders, and legs, while weightlifting targets a wide range of muscle groups, including the chest, shoulders, back, legs, and core.

1. Intensity: The intensity of carrying heavy loads up a hill can vary depending on the weight of the rocks, the distance of the hill, and the frequency of the activity. Weightlifting, on the other hand, can be performed at a range of intensities, from light to heavy weights, depending on the individual's fitness level and goals.

1. Volume: Carrying rocks up a hill may involve more volume (i.e., total weight carried) than weightlifting, especially if you're carrying heavy loads multiple times a day. However, weightlifting can involve a higher volume of lifts, as you can perform multiple sets and reps with different weights.

1. Progressive overload: Weightlifting allows for progressive overload, which means you can gradually increase the weight you're lifting over time to continue challenging your muscles and promoting strength gains. Carrying rocks up a hill may not allow for the same degree of progressive overload, as the weight of the rocks may not change significantly over time.

1. Muscle balance: Carrying rocks up a hill may develop strength in the muscles used for carrying and lifting, but it may not target other muscle groups, such as the chest, shoulders, and triceps, which are often worked in weightlifting.

1. Other factors: Other factors, such as nutrition, sleep, and overall lifestyle, can also impact muscle growth and strength gains.

It's challenging to directly compare the strength gains from carrying rocks up a hill to those from weightlifting, as both activities have unique characteristics. However, both can be effective for building strength, and it's essential to consider individual factors and goals when determining the best exercise program.

If you're interested in building strength, it's a good idea to incorporate a variety of exercises and activities into your routine, including both carrying heavy loads and weightlifting, to ensure overall muscle balance and strength gains. Consulting with a fitness professional or doctor can also help you design a safe and effective exercise program tailored to your specific needs and goals.